JP5198609B2 - Electronic device, display control method, and program - Google Patents

Description

  The present invention relates to an electronic device, a display control method, and a program that support user operations related to deletion of moving image data using a still image extracted from the moving image data.

  In general, an electronic device such as a video recorder or a personal computer can record and reproduce various video content data (moving image data) such as television broadcast program data. In this case, a title name is added to each video content data stored in the electronic device, but it is not possible for the user to grasp what the content of each video content data is based on the title name alone. Have difficulty. For this reason, in order to grasp the content of the video content data, it is necessary to reproduce the video content data. However, reproduction of video content data with a long total time length requires a lot of time even when a fast-forward reproduction function or the like is used.

  Patent Document 1 discloses an information processing apparatus that displays a face thumbnail image. This information processing apparatus has a function of displaying each face thumbnail image corresponding to the image content as an index for the user to select all or part of the image content.

JP 2008-17041 A

  Incidentally, since the storage capacity of the storage device of the electronic device is limited, the user may perform an operation of deleting unnecessary moving image data from moving image data such as program data stored in the storage device. May be necessary.

  Normally, when certain data is selected as deletion target data by the user, a deletion confirmation screen for allowing the user to confirm whether or not the data can be deleted is displayed. However, this deletion confirmation screen is simply an interface for inquiring the user again whether or not the data can really be deleted, and only the YES button and the NO button are displayed. Therefore, it is necessary for the user to determine deletion or non-deletion of the deletion target data based on his / her own judgment. However, the moving image data designated by the user as a deletion target may include a scene in which the user is interested. The user may forget that such a scene is included in the moving image data to be deleted.

  Therefore, it is necessary to realize a new function for assisting the user in determining whether to delete or not delete moving image data.

  SUMMARY An advantage of some aspects of the invention is that it provides an electronic device and a support method that can support a user operation related to deletion of moving image data.

The electronic apparatus according to claim 1, one or more moving image data, storage means for storing a plurality of face images extracted from the moving image data for each moving image data, and the one or more moving image data When a deletion target moving image data is selected from the first display processing means for displaying a list and the moving image data list, a deletion confirmation screen for confirming whether or not the deletion target moving image data can be deleted is displayed. A deletion confirmation screen displaying a plurality of face images appearing in a section that has been reproduced in the deletion target moving image data among the plurality of face images corresponding to the deletion target moving image data. And second display processing means.

The display control method according to claim 5 is a display control method for performing display control related to deletion of one or more moving image data stored in a storage device of an electronic device, wherein the moving image data is displayed for each moving image data. A step of extracting a plurality of face images from image data; a step of displaying a list of the one or more moving image data; and a moving image data to be deleted selected from the moving image data list, the moving image to be deleted A deletion confirmation screen for confirming whether or not image data can be deleted, and among a plurality of face images corresponding to the deletion target moving image data, within a section that has been reproduced in the deletion target moving image data And a step of displaying a deletion confirmation screen on which a plurality of appearing face images are displayed.

  ADVANTAGE OF THE INVENTION According to this invention, user operation regarding deletion of moving image data can be assisted.

The perspective view which shows the example of the external appearance of the electronic device which concerns on one Embodiment of this invention. 2 is an exemplary block diagram showing an example of the system configuration of the electronic apparatus of the embodiment. FIG. FIG. 3 is an exemplary block diagram for explaining a face image list display function of the electronic apparatus of the embodiment. 6 is an exemplary view showing an example of section attribute information (attribute detection result information) used in the electronic apparatus of the embodiment. FIG. 6 is an exemplary view showing an example of a face image group used in the electronic apparatus of the embodiment. FIG. 2 is an exemplary block diagram illustrating a functional configuration of a program used in the electronic apparatus of the embodiment. FIG. 6 is an exemplary view showing an example of an indexing view screen displayed on the display device by the electronic apparatus of the embodiment. FIG. The figure which shows the structural example of the face thumbnail display area contained in the indexing view screen of FIG. FIG. 3 is an exemplary view for explaining a deletion confirmation function of the electronic apparatus of the embodiment. 6 is an exemplary view showing an example of a deletion confirmation screen used in the electronic apparatus deletion confirmation function of the embodiment. FIG. 6 is an exemplary view showing another example of a deletion confirmation screen used in the electronic apparatus deletion confirmation function of the embodiment. FIG. 6 is a diagram showing still another example of a deletion confirmation screen used in the electronic device deletion confirmation function of the embodiment. FIG. 2 is an exemplary block diagram illustrating a configuration example of a content management unit provided in the electronic apparatus of the embodiment. FIG. 6 is an exemplary flowchart illustrating an example of a procedure of face image list display processing executed by the electronic apparatus of the embodiment. 6 is an exemplary flowchart illustrating an example of a procedure of reproduction processing executed by the electronic apparatus of the embodiment. 6 is an exemplary flowchart illustrating an example of a procedure of a deletion confirmation process which is executed by the electronic apparatus of the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, with reference to FIG. 1 and FIG. 2, the structure of the electronic device which concerns on one Embodiment of this invention is demonstrated. The electronic apparatus according to the present embodiment is realized by, for example, a notebook portable personal computer 10 that functions as an information processing apparatus.

  The personal computer 10 can record and reproduce video content data (moving image data) such as broadcast program data and video data input from an external device. That is, the personal computer 10 has a television (TV) function for viewing and recording broadcast program data broadcast by a television broadcast signal. This TV function is realized by, for example, a TV application program installed in the personal computer 10 in advance. The TV function also has a function of recording video data input from an external AV device, and a function of reproducing recorded video data and recorded broadcast program data.

  Further, the personal computer 10 displays a face image list display for displaying a list of face images of persons appearing in video content data (moving image data) such as video data and broadcast program data stored in the personal computer 10. It has a function. This face image list display function is implemented as one function in the TV function, for example. The face image list display function is one of video indexing functions for presenting the user with an overview of video content data selected by the user as a navigation target. This face image list display function can present to the user which person appears in which time zone in the entire video content data to be navigated. The face image list display function can also display a list of persons by paying attention to a predetermined attribute section included in the video content data.

  Furthermore, this face image list display function can also display a list of thumbnail images corresponding to each of a plurality of frames extracted from video content data at equal time intervals.

  The personal computer 10 also has a deletion decision support function for supporting a user operation related to deletion of video content data (moving image data). This deletion decision support function uses a still image group (the above-described face image group or the above-described thumbnail image group) composed of a plurality of still images extracted from each moving image data by the face image list display function, This is a function for presenting an outline of deletion target moving image data to the user.

  The deletion decision support function displays a list of video content data (moving image data) stored in the personal computer 10. When deletion target video content data is selected by the user from the list of video content data, the deletion determination support function displays a deletion confirmation screen for confirming to the user whether or not deletion target video content data has been deleted. On this deletion confirmation screen, still image groups (the above-described face image group or the above-described thumbnail image group) extracted from the deletion target video content data are displayed, for example, in the order in which these still image groups appear. The

  Although all the still images corresponding to the deletion target video content data may be displayed on the deletion confirmation screen, a section that has been played in the past in the sequence from the start to the end of the deletion target video content data ( Only each still image appearing in the reproduced scene) may be displayed on the deletion confirmation screen. This makes it possible to present to the user a group of still images that are useful for determining whether to delete or not delete the video content data to be deleted. In addition, all still images corresponding to the deletion target video content data are displayed on the deletion confirmation screen, and each of the still images that appear in a section (reproduced scene) that has been reproduced in the past. A still image may be highlighted.

  FIG. 1 is a perspective view of the computer 10 with the display unit opened. The computer 10 includes a computer main body 11 and a display unit 12. The display unit 12 incorporates a display device including a TFT-LCD (Thin Film Transistor Liquid Crystal Display) 17.

  The display unit 12 is attached to the computer main body 11 so as to be rotatable between an open position where the upper surface of the computer main body 11 is exposed and a closed position covering the upper surface of the computer main body 11. The computer main body 11 has a thin box-shaped housing, and has a keyboard 13 on its upper surface, a power button 14 for powering on / off the computer 10, an input operation panel 15, a touch pad 16, and a speaker. 18A, 18B, etc. are arranged.

  The input operation panel 15 is an input device that inputs an event corresponding to a pressed button, and includes a plurality of buttons for starting a plurality of functions. These button groups also include operation button groups for controlling TV functions (viewing broadcast program data / video data, recording broadcast program data / video data, reproducing recorded broadcast program data / video data). ing. In addition, a remote control unit interface unit 20 for executing communication with a remote control unit for remotely controlling the TV function of the computer 10 is provided on the front surface of the computer main body 11. The remote control unit interface unit 20 includes an infrared signal receiving unit and the like.

  On the right side of the computer main body 11, for example, an antenna terminal 19 for TV broadcasting is provided. Further, on the back surface of the computer main body 11, for example, an external display connection terminal corresponding to the HDMI (high-definition multimedia interface) standard is provided. The external display connection terminal is used to output video data (moving image data) included in video content data such as broadcast program data to an external display.

  Next, the system configuration of the computer 10 will be described with reference to FIG.

  As shown in FIG. 2, the computer 10 includes a CPU 101, a north bridge 102, a main memory 103, a south bridge 104, a graphics processing unit (GPU) 105, a video memory (VRAM) 105A, a sound controller 106, a BIOS- ROM 109, LAN controller 110, hard disk drive (HDD) 111, DVD drive 112, video processor 113, memory 113A, network controller 114 such as a wireless LAN controller, IEEE 1394 controller 115, embedded controller / keyboard controller IC (EC / KBC) 116, a TV tuner 117, an EEPROM 118, and the like.

  The CPU 101 is a processor that controls the operation of the computer 10 and executes various application programs such as an operating system (OS) 201 and a TV application program 202 that are loaded from the hard disk drive (HDD) 111 to the main memory 103. . The TV application program 202 is software for executing a TV function. The TV application program 202 includes a live reproduction process for viewing broadcast program data received by the TV tuner 117, a recording process for recording the received broadcast program data in the HDD 111, and broadcast program data / data recorded in the HDD 111. A reproduction process for reproducing video data is executed. The CPU 101 also executes a BIOS (Basic Input Output System) stored in the BIOS-ROM 109. The BIOS is a program for hardware control.

  The north bridge 102 is a bridge device that connects the local bus of the CPU 101 and the south bridge 104. The north bridge 102 also includes a memory controller that controls access to the main memory 103. The north bridge 102 also has a function of executing communication with the GPU 105 via a PCI EXPRESS standard serial bus or the like.

  The GPU 105 is a display controller that controls the LCD 17 used as a display monitor of the computer 10. A display signal generated by the GPU 105 is sent to the LCD 17. The GPU 105 can also send a digital video signal to the external display device 1 via the HDMI control circuit 3 and the HDMI terminal 2.

  The HDMI terminal 2 is the above-described external display connection terminal. The HDMI terminal 2 can send a digital audio signal and an uncompressed digital video signal to the external display device 1 such as a television using a single cable. The HDMI control circuit 3 is an interface for sending a digital video signal to the external display device 1 called an HDMI monitor via the HDMI terminal 2.

  The south bridge 104 controls each device on an LPC (Low Pin Count) bus and each device on a PCI (Peripheral Component Interconnect) bus. The south bridge 104 includes an IDE (Integrated Drive Electronics) controller for controlling the hard disk drive (HDD) 111 and the DVD drive 112. Further, the south bridge 104 has a function of executing communication with the sound controller 106.

  Furthermore, a video processor 113 is connected to the south bridge 104 via a PCI EXPRESS standard serial bus or the like.

  The video processor 113 is a processor that executes various processes related to the above-described video indexing. The video processor 113 functions as an indexing processing unit for executing a video indexing process. That is, in the video indexing process, the video processor 113 extracts a person's face image from the moving image data included in the video content data, and time indicating the time when each extracted face image appears in the video content data. Output stamp information, etc. The face image is extracted by, for example, a face detection process for detecting a face area from each frame of moving image data included in video content data, a cut-out process for cutting out the detected face area from the frame, and the like. The face area can be detected by, for example, analyzing an image feature of each frame and searching for an area having a feature similar to a face image feature sample prepared in advance. The face image feature sample is feature data obtained by statistically processing the face image features of a large number of persons.

  Furthermore, the video processor 113 also executes, for example, a process for detecting a commercial (CM) section included in the video content data and an audio indexing process. Usually, the time length of each CM section is set to one of several predetermined time lengths. In addition, there is a certain period of silence before and after the CM section. Therefore, in the CM section detection process, for example, audio data included in the video content data is analyzed, and a silent section having a certain length of time is detected. Then, a section including partial data that is sandwiched between two detected silent sections and has a time length equal to or greater than a certain value is detected as a CM section.

  In the audio indexing process, the audio data included in the video content data is analyzed to detect a music section in which the music flows and a talk section in which a person is talking. It is processing. In the audio indexing process, for example, the characteristics of the frequency spectrum of the audio data are analyzed, and the music section and the talk section are detected according to the characteristics of the frequency spectrum. Since the characteristics of the frequency spectrum corresponding to the music section and the characteristics of the frequency spectrum corresponding to the talk section are different from each other, the music section and the talk section can be detected by analyzing the characteristics of the frequency spectrum. In addition, a section having a frequency spectrum feature (acoustic feature) in which a frequency spectrum feature corresponding to a music section and a frequency spectrum feature corresponding to a talk section are mixed is a superimposed section in which the music section and the talk section overlap. Can be detected.

  Furthermore, the audio indexing process detects a cheer level for each partial data (data of a certain length of time) in the video content data, and detects a swell level for each partial data in the video content data. The swell level detection process is executed.

  The cheer level indicates the size of the cheer. Cheers are the sounds of many people. The sound of many human voices has a certain frequency spectrum distribution. In the cheer level detection process, the frequency spectrum of the audio data included in the video content data is analyzed, and the cheer level of each partial data is detected according to the analysis result of the frequency spectrum. The excitement level is a volume level of a section in which a volume level above a certain level is continuously generated for a certain length of time. For example, the volume level of a sound such as a relatively large applause and a loud laughter is the excitement level. In the swell level detection process, the volume distribution of the audio data included in the video content data is analyzed, and the swell level of each partial data is detected according to the analysis result. It is also possible to use the volume level itself as the excitement level.

  The memory 113A is used as a working memory for the video processor 113. A large amount of calculation is required to execute the indexing process (CM detection process, video indexing process, and audio indexing process). In the present embodiment, a video processor 113 that is a dedicated processor different from the CPU 101 is used as a back-end processor, and indexing processing is executed by the video processor 113. Therefore, the indexing process can be executed without increasing the load on the CPU 101. Since the CM detection process can be executed by analyzing the audio data as described above, the CM detection process will be treated as one process in the audio indexing process below.

  The sound controller 106 is a sound source device, and outputs audio data to be reproduced to the speakers 18A and 18B or the HDMI control circuit 3.

  The wireless LAN controller 114 is a wireless communication device that performs wireless communication of, for example, IEEE 802.11 standard. The IEEE 1394 controller 115 executes communication with an external device via an IEEE 1394 standard serial bus.

  The embedded controller / keyboard controller IC (EC / KBC) 116 is a one-chip microcomputer in which an embedded controller for power management and a keyboard controller for controlling the keyboard (KB) 13 and the touch pad 16 are integrated. . The embedded controller / keyboard controller IC (EC / KBC) 116 has a function of powering on / off the computer 10 in accordance with the operation of the power button 14 by the user. Further, the embedded controller / keyboard controller IC (EC / KBC) 116 has a function of executing communication with the remote control unit interface 20.

  The TV tuner 117 is a receiving device that receives broadcast program data broadcast by a television (TV) broadcast signal, and is connected to the antenna terminal 19. The TV tuner 117 is realized as a digital TV tuner capable of receiving digital broadcast program data such as terrestrial digital TV broadcast. The TV tuner 117 also has a function of capturing video data input from an external device.

  Next, the face image list display function executed by the TV application program 202 will be described with reference to FIG.

  As described above, the indexing process (video indexing process and audio indexing process) for video content data such as broadcast program data is executed by the video processor 113 functioning as an indexing processing unit.

  Under the control of the TV application program 202, the video processor 113 executes an indexing process on video content data such as recorded broadcast program data designated by the user, for example. The video processor 113 can also execute an indexing process on the broadcast program data in parallel with a recording process for storing the broadcast program data received by the TV tuner 117 in the HDD 111.

  In the video indexing process (also referred to as face image indexing process), the video processor 113 analyzes moving image data included in the video content data in units of frames. Then, the video processor 113 extracts a human face image from each of a plurality of frames constituting the moving image data, and outputs time stamp information indicating a time point at which each extracted face image appears in the video content data. . As the time stamp information corresponding to each face image, the elapsed time from the start of the video content data to the appearance of the face image, the frame number from which the face image is extracted, or the like can be used.

  Furthermore, the video processor 113 also outputs the size (resolution) of each extracted face image. The face detection result data (face image, time stamp information TS, and size) output from the video processor 113 is stored as face image indexing information in the database 111A. The database 111A is a storage area for storing indexing data prepared in the HDD 111.

  Further, in the video indexing process, the video processor 113 also executes a thumbnail image acquisition process in parallel with the process of extracting the face image. A thumbnail image is an image (reduced image) corresponding to each of a plurality of frames extracted from video content data at regular time intervals, for example. That is, the video processor 113 sequentially extracts frames, for example, at predetermined equal time intervals from the video content data regardless of whether or not the frame includes a face image, and images (thumbnail images) corresponding to the extracted frames. And time stamp information TS indicating the time when the thumbnail image appears. Thumbnail image acquisition result data (thumbnail and time stamp information TS) output from the video processor 113 is also stored as thumbnail indexing information in the database 111A.

  Furthermore, in the video indexing process, a face image classification process for classifying the extracted plurality of face images into a plurality of face image groups for each person is also executed. Face images belonging to a certain face image group, that is, face images corresponding to the same person, are associated with an identifier (ID) for identifying the face image group, that is, the person.

  In the audio indexing process, the video processor 113 analyzes the acoustic characteristics of the audio data included in the video content, and includes a plurality of attribute sections (CM section, music section, and talk section) included in the video content data. ) Is detected, and section attribute information defining the start and end times of each detected attribute section is output. This section attribute information can be composed of time information indicating the start time and end time of the attribute section for each attribute section, for example. Moreover, you may comprise area | region attribute information by the information which shows the start time of an attribute area, and the information which shows the time length of the attribute area.

  This section attribute information is stored in the database 111A as attribute detection result information. Further, in the audio indexing process, the video processor 113 also executes the cheering level detection process and the excitement level detection process described above. The result of the cheer level detection process and the result of the excitement level detection process are also stored in the database 111A as part of the attribute detection result information.

  As shown in FIG. 4, the attribute detection result information (section attribute information) includes, for example, a CM section table, a music section table, a talk section table, and a cheer / climax table.

  The CM section table stores CM section attribute information indicating the start time and end time of the detected CM section. When there are a plurality of CM sections in the sequence from the start position to the end position of the video content data, CM section attribute information corresponding to each of the plurality of CM sections is stored in the CM section table. In the CM section table, start time information and end time information indicating the start time and end time of the CM section are stored for each detected CM section.

  The music section table stores music section attribute information indicating the start time and end time of the detected music section. When there are a plurality of music sections in the sequence from the start position to the end position of the video content data, music section attribute information corresponding to each of the plurality of music sections is stored in the music section table. In the music section table, start time information and end time information indicating the start time and end time of the music section are stored for each detected music section.

  The talk section table stores music section attribute information indicating the start time and end time of the detected talk section. When there are a plurality of talk sections in the sequence from the start position to the end position of the video content data, talk section attribute information corresponding to each of the plurality of talk sections is stored in the talk section table. In the talk section table, start time information and end time information indicating the start time and end time of the talk section are stored for each detected talk section.

  The cheer / climax table stores cheer levels and excitement levels in each partial data (time segments T1, T2, T3,...) Of a certain time length in the video content data.

  As shown in FIG. 3, the TV application program 202 includes a face image list display processing unit 301 for executing a face image list display function. The face image list display processing unit 301 is realized as an indexing viewer program, for example, and uses indexing information (face image indexing information, thumbnail indexing information, section attribute information, and the like) stored in the database 111A. An indexing view screen for presenting an overview of content data is displayed.

  Specifically, the face image list display processing unit 301 reads face image indexing information (face image, time stamp information TS, and size) from the database 111A, and uses the face image indexing information to generate video content data. A list of face images of people appearing is displayed on a two-dimensional display area (hereinafter referred to as a face thumbnail display area) on the indexing view screen. In this case, the face image list display processing unit 301 divides the total time length of the video content data into a plurality of time zones, for example, at regular intervals, and for each time zone, extracts the face image from the extracted face images. A predetermined number of face images appearing on the screen are selected. Then, the face image list display processing unit 301 displays the selected predetermined number of face images side by side for each time period.

  That is, the two-dimensional face thumbnail display area includes a plurality of face image display areas arranged in a matrix including a plurality of rows and a plurality of columns. A plurality of time zones constituting the total time length of the video content data are assigned to each of the plurality of columns. Specifically, for example, in each of the plurality of columns, a plurality of time zones having the same time length obtained by dividing the total time length of the video content data at equal intervals by the number of the plurality of columns. Are assigned to each. Of course, the time zone allocated to each column does not necessarily have the same time length. The face image list display processing unit 301, based on the time stamp information TS corresponding to each face image, on the face image display area for the number of rows belonging to each column, faces belonging to the time zone assigned to each column. For example, the images are arranged and displayed in the order of appearance frequency order (face image detection time length order). In this case, for example, face images corresponding to the number of lines are selected in descending order of appearance frequency (appearance frequency) from the face images belonging to the time zone assigned to each column, and the selected face images are arranged in the appearance frequency order. They are arranged side by side from top to bottom. Of course, instead of the appearance frequency order, the face images that appear in the time zone assigned to each column may be displayed in the order of appearance.

  With this face image list display function, it is possible to easily show to the user which person appears in which time zone in the entire video content data. A specific configuration example of the face thumbnail display area will be described later with reference to FIG.

  In addition, the face image list display processing unit 301 reads thumbnail indexing information (thumbnail and time stamp information TS) from the database 111A, and uses the thumbnail indexing information to display each thumbnail image below or above the face thumbnail display area. On the thumbnail display area arranged on one side (hereinafter referred to as the “jabal thumbnail display area”), the thumbnail images are displayed in a line in order of appearance time.

  Depending on the video content data, there may be a time period when the face image does not appear. Therefore, by displaying not only the face thumbnail display area but also the loose thumbnail display area on the indexing view screen, the contents of the video content data in that time period can be presented to the user even during the time period when the face image does not appear. Can do.

  Further, the face image list display processing unit 301 reads section attribute information (CM section attribute information, music section attribute information, talk section attribute information) from the database 111A, and ends the video content data from the start position according to the section attribute information. A face thumbnail display area on the indexing view screen includes a section bar including a bar area indicating the position (section from the start time to the end time) of each attribute section (CM section, music section, talk section) in the sequence up to the position. Is displayed on one of the lower side and the upper side.

  By displaying a section bar on the indexing view screen, it is possible to determine in which attribute section (CM section, music section, talk section) each face image in the face thumbnail display area is a face image of a person appearing. It can be presented to the user. Therefore, the user can find the data position where playback should start from the entire video content data in consideration of the characters and the section attributes.

  Further, the face image list display processing unit 301 reads cheer level information and excitement level information from the database 111A, and in accordance with the cheer level information and excitement level information, the cheer level in the sequence from the start position to the end position of the video content data And a graph indicating the change of the swell level, respectively, are displayed on the level display area arranged on the lower side or the upper side of the face thumbnail display area on the indexing view screen.

  By looking at this level display area, the user knows where in the video content data there is a section where a great cheer has occurred, and where in the video content data there is a section where there is a large excitement. Can do. The user can find a data position where reproduction should be started from the entire video content data in consideration of the characters, section attributes, cheer level, and excitement level.

  FIG. 5 shows the relationship between several face image groups obtained by classifying a plurality of face images by face image classification processing and IDs (face IDs) corresponding to the face image groups.

  The video processor 113 executes face image classification processing for classifying face images corresponding to the same person into the same category based on the correlation of the feature data between the face images extracted from the moving image data of certain video content data. In the face image classification process, face images having similar characteristics are classified into the same category (the same face image group). As shown in FIG. 5, the same ID (face ID) is assigned to each face image corresponding to the same person. In FIG. 5, category 1 represents a set of face images of a certain person A, category 2 represents a set of face images of a certain person B, and category 3 represents a face image of a certain person C. A set of Each face image belonging to category 1 is associated with an ID (face ID = A) for identifying person A. Each face image belonging to category 2 is associated with an ID for identifying person B (face ID = B). Each face image belonging to category 3 is associated with an ID for identifying person C (face ID = C).

  Next, the functional configuration of the TV application program 202 will be described with reference to FIG.

  The TV application program 202 includes a recording processing unit 401, an indexing control unit 402, a reproduction processing unit 403, a content management unit 404 and the like in addition to the face image list display processing unit 301 described above.

  The recording processing unit 401 executes a recording process of recording broadcast program data received by the TV tuner 117 or video data input from an external device in the HDD 111. Further, the recording processing unit 401 receives broadcast program data designated by recording reservation information (channel number, date and time) preset by the user using the TV tuner 117, and reserves to record the broadcast program data in the HDD 111. Recording processing is also executed.

  The indexing control unit 402 controls the video processor (indexing processing unit) 113 to cause the video processor 113 to execute indexing processing (video indexing processing and audio indexing processing). The user can specify whether or not to perform the indexing process for each broadcast program data to be recorded. For example, for broadcast program data to be recorded for which execution of the indexing process is instructed, the indexing process is automatically started in parallel with the process of recording the broadcast program data in the HDD 111. The user can also specify video content data to be indexed from video content data already stored in the HDD 111.

  The playback processing unit 403 executes processing for playing back each video content data stored in the HDD 111. Also, the playback processing unit 403 displays the selected face image when a playback request event is input by a user operation while one face image in the face image list of a certain video content data is selected. The reproduction of the video content data can be started from the time corresponding to the position in the video content data.

  The user can determine the position where the reproduction of the video content data is to be started while viewing the face image list. Therefore, the user can view only one or more scenes in which a person interested in the user appears by selectively specifying an arbitrary face image in the face image list.

  Note that the indexing process is not necessarily executed by the video processor 113. For example, the TV application program 202 may be provided with a function for executing the indexing process. In this case, the indexing process is executed by the CPU 101 under the control of the TV application program 202.

  The content management unit 404 manages each video content data stored in the HDD 111. The content management unit 404 executes a process of displaying a content list screen for displaying a list of video content data stored in the HDD 111 and the above-described deletion determination support function. For example, when the deletion target video content data is selected by the user from the content list screen, the content management unit 404 displays the still image extracted from the deletion target video content data in order to present an overview of the deletion target video content data to the user. A deletion confirmation screen is displayed in which the images (face images or thumbnail images) are arranged in the order of appearance times of the still images.

  Next, a specific configuration of the indexing view screen will be described with reference to FIGS. 7 and 8.

  FIG. 7 shows an example of an indexing view screen displayed on the LCD 17 by the face image list display processing unit 301. This indexing view screen is a screen obtained by indexing certain video content data (for example, broadcast program data). On the indexing view screen, the above-mentioned face thumbnail display area for displaying a list of face images, the above-mentioned level display area, the above-mentioned section bar, and the above-mentioned for displaying a list of thumbnail images in a loose format. And a thumbnail display area.

  Here, the loose format is a display format in which a selected thumbnail image is displayed in a normal size, and the other thumbnail images are displayed in a reduced size in the horizontal direction. FIG. 7 shows a case where the leftmost thumbnail image is selected.

  The face image list display processing unit 301 displays the thumbnail image selected by the user operation in the first horizontal width size, and displays the horizontal width size of each of the other thumbnail images in a horizontal width size smaller than the first horizontal width size. Specifically, the selected thumbnail image is displayed in the first width size, and some thumbnail images in the vicinity of the selected thumbnail image are displayed with the width reduced, and each other thumbnail image is displayed. Is displayed with a slight width. A rectangular frame may be further added to the selected thumbnail image.

  In the level display area, a graph indicating a change in cheering level (a graph indicated by a dark color in FIG. 7) and a graph indicating a change in a rising level (a graph indicated by a light color in FIG. 7) are displayed. .

  The section bar indicates the position of each of the talk section, music section, and CM section. In the section bar, a bar area of a certain color (black strip area in FIG. 7) is displayed at the position of each CM section. In addition, bar areas of other colors (cross-hatched belt-like areas in FIG. 7) are displayed at the positions of the music sections. Further, a bar area of another color (a hatched band-like area in FIG. 7) is displayed at the position of each talk section. The user can also select one bar area in the section bar by operating the buttons on the remote control unit and the cursor keys such as up / down / left / right.

  In the face thumbnail display area, a list of a plurality of face images is displayed. When face images are not detected continuously for a certain period or longer, thumbnail images of the entire frame may be displayed in the face thumbnail display area. In addition, a thumbnail image of the entire frame may be displayed in the face thumbnail display area at each scene change.

  FIG. 8 shows a configuration example of the face thumbnail display area.

  The face thumbnail display area includes a plurality of face image display areas arranged in a matrix including a plurality of rows and a plurality of columns. In FIG. 8, the face thumbnail display area is composed of 6 rows × 16 columns. The number of face image display areas included in the face thumbnail display area is 96.

  A plurality of time zones having the same time length T are assigned to each of the columns 1 to 16. The time length T is obtained by dividing the total time length of the video content data by equal number of columns (= 16).

  For example, if the total time length of the video content data is 2 hours, the 2 hours are divided into 16 time zones at equal intervals. In this case, the time length T of each time zone is 7.5 minutes. For example, column 1 is assigned the time zone from the beginning 0:00:00 to 0:07:30, and column 2 is assigned the time zone from 0:07:30 to 0:15:00. Column 3 is assigned a time zone from 0:15:00 to 0:22:30. The time length T of each time zone changes according to the total time length of the video content data.

  Of course, the length of the time zone assigned to each of the plurality of columns is not necessarily the same.

  The face image list display processing unit 301 uses the time stamp information corresponding to each face image extracted by the video processor 113 to display the time allocated to each column on the six face image display areas in each column. The face images belonging to the band are displayed, for example, arranged in the order of frequency or appearance described above. In this case, the face image list display processing unit 301 selects face images corresponding to the number of lines (six) from among the face images belonging to the time zone assigned to the display processing target column, and corresponds to the selected number of lines. Display face images side by side.

  In this way, the face thumbnail display area uses a time axis with the left end position (1, 1) as a base point and the right end position (6, 16) as the end of video content data.

  The size of the face image displayed in each face image display area of the face thumbnail display area can be selected from “large”, “medium”, and “small”. The number of rows and columns is changed according to the size of the face image selected by the user. The relationship between the size of the face image and the number of rows and columns is as follows.

(1) “Large”; 3 rows x 8 columns (2) “Medium”; 6 rows x 16 columns (3) “Small”: 10 rows x 24 columns “Large” Each face image is displayed with a size of 180 × 180 pixels, for example. In the case of “medium”, each face image is displayed with a size of 90 × 90 pixels, for example. In the case of “small”, each face image is displayed with a size of 60 × 60 pixels, for example. The default face image size is set to “medium”, for example.

  Each face image in the face thumbnail display area is set to one of two states, a “normal” state that is not selected and a “focus” state that is selected. The size of the face image in the “focus” state is set larger than the size in the “standard” state (180 × 180, 90 × 90, or 60 × 60). FIG. 8 shows a case where the face image at the coordinates (1, 12) is in the “focus” state.

  The number of thumbnail images displayed in the loose thumbnail display area is set to, for example, 240, 144, 96, or 48 according to the user setting. The default is 240 sheets, for example.

  The thumbnail image is set to one of two states, a “normal” state that is not selected and a “focus” state that is selected. The thumbnail image in the “focus” state is displayed in a larger size than the other thumbnail images.

  Next, the deletion confirmation process executed by the content management unit 404 will be described with reference to FIG.

  When the video content data list display is requested by the user or the content deletion is requested by the user, the content management unit 404 displays a content list screen as shown on the upper side of FIG. 9 on the display screen of the LCD 17. To display. If video content data A, video content data B, video content data C, and video content data D are stored in HDD 111, content management unit 404 corresponds to each of video content data A, B, C, and D. A thumbnail image or a folder icon corresponding to each of the video content data A, B, C, and D is displayed on the content list screen. Further, the file name or program name of each video content data may be displayed in association with the thumbnail image or folder icon.

  When a certain video content data in the video content data A, B, C, D is selected as the video content data to be deleted by the operation of the remote control unit or the keyboard 13 by the user, the content management unit 404 displays the lower side of FIG. Is displayed on the display screen of the LCD 17. The deletion confirmation screen displays a list of face images (face thumbnail images) corresponding to the deletion target video content data and a deletion confirmation dialog. In this deletion confirmation dialog, a message for confirming to the user whether the video content data to be deleted may be deleted, a YES button, and a NO button are displayed.

  For example, when the video content data B is selected as deletion target video content data from the content list screen by the user, the content management unit 404 selects a face image group (face thumbnail image group) corresponding to the video content data B from the database 111. The acquired face image group is displayed on the deletion confirmation screen, and a deletion confirmation dialog is displayed on the deletion confirmation screen. The face image group (face thumbnail image group) corresponding to the video content data B is displayed side by side in the order in which the face images appear, for example.

  Although all face images corresponding to the deletion target video content data may be displayed on the deletion confirmation screen, each section that has been reproduced in the past in the sequence from the start to the end of the deletion target video content data Only the face images that appear in (reproduced scenes) may be displayed on the deletion confirmation screen. As described above, by considering the past reproduction history by the user, it is possible to efficiently display a group of face images useful for the user to decide whether to delete / not delete the deletion target video content data on the deletion confirmation screen. it can.

  Further, all face images corresponding to the deletion target video content data are displayed on the deletion confirmation screen, and further, a section that has been reproduced in the past (reproduced scene) among all the face images. Only the face images appearing on the screen may be highlighted.

  FIG. 10 shows an example of a deletion confirmation screen using the index view screen described in FIG.

  When the user performs an operation for designating deletion of video content data on the content list screen shown in the upper side of FIG. 9, the content management unit 404 uses the screen of FIG. 10 as the deletion confirmation screen on the display screen of the LCD 17. To display.

  The deletion confirmation screen in FIG. 10 includes the index view screen in FIG. 7 and a deletion confirmation dialog displayed on the index view screen. Note that it is not always necessary to use the entire index view screen as the deletion confirmation screen, and only the face thumbnail display area in the index view screen may be used to display the deletion confirmation screen. In this case, the deletion confirmation screen includes a face thumbnail display area and a deletion confirmation dialog.

  Further, only a specific face image group among the face image groups displayed in the face thumbnail display area may be displayed. In this case, the specific face image group is a face image group that appears in a section (reproduced scene) that has been reproduced in the past in the sequence from the start to the end of the deletion target video content data. Can be used. The content management unit 404 manages information indicating the reproduced section for each video content data or information indicating each face image appearing in the reproduced section as reproduction history information. Using this reproduction history information, the content management unit 404 selects a face image group belonging to a section (scene) that has been reproduced from the face image group corresponding to the deletion target video content data. Then, the content management unit 404 displays only the selected face image group on the deletion confirmation screen.

  If the face thumbnail list displayed in the face thumbnail display area is used to display the deletion confirmation screen, the section that has been played in the face image group displayed in the face thumbnail display area A group of face images belonging to (reproduced scene) may be displayed in the first display mode (highlight display mode), and each other face image may be displayed in a second display mode such as the standard display mode. The first display mode is a display mode for highlighting a predetermined face image. Examples of the topsoil mode for highlighting the face image include (1) adding a frame to the face image, (2) increasing the size of the face image, and the like.

  In the present embodiment, an arbitrary face image on the indexing view screen selected by the user can be used as a trigger for starting the reproduction process, and video content data can be reproduced from the point in time when the face image appears. Therefore, in the present embodiment, a face image that has been used as a trigger for starting the reproduction process so far, that is, a face image that has been selected as a reference at the time of starting reproduction has been reproduced. It can be used as a face image that appears in a certain section (reproduced scene). In this case, the content management unit 404 uses, as playback history information, an identifier for identifying a face image used as a playback trigger for each video content data (or an ID (face ID) of a person corresponding to the face image). Remember and manage. Then, based on the playback history information, the content management unit 404 selects each face image that has been used as a reference when starting playback from the face image group corresponding to the deletion target video content data, and selects Each of the face images thus displayed is displayed on the deletion confirmation screen as a face image appearing in the reproduced scene.

  Thereby, each face image selected as a trigger for reproduction in the past by the user can be presented to the user. In many cases, the face image selected as a trigger for reproduction is a face image of a person interested in the user. Therefore, by displaying each face image that has been used as a trigger for playback on the deletion confirmation screen, a face image useful for determining whether to delete or not delete the video content data to be deleted can be efficiently displayed to the user. Can be presented.

  In addition to the face image that has actually been used as a trigger for playback, all face images belonging to the same group as this face image are deleted as face images of people appearing in the played scene. You may display on a confirmation screen. In this case, the content management unit 404 selects a face image used as a reproduction trigger and each face image corresponding to the same person as the face image from the face image group corresponding to the deletion target moving image data. The selected face image is displayed on the deletion confirmation screen.

  As another example for displaying the face image group appearing in the reproduced scene on the deletion confirmation screen, a process of displaying a face image with a long total reproduction time on the deletion confirmation screen is used. obtain. In this case, the content management unit 404 manages the total reproduction time in which the frame corresponding to the face image is reproduced for each face image by reproducing the deletion target moving image data. Specifically, the content management unit 404 reproduces, for example, a frame corresponding to the face image for each face image included in the reproduced scene (or for each face image group included in the reproduced scene). The reproduction history information for defining the total time length (total reproduction time length) is managed. The face image (or face image group) included in a scene with a large number of reproduction times has a longer total reproduction time of the face image (or face image group). The content management unit 404 selects an upper predetermined number of face images having a long total reproduction time from the face image group corresponding to the deletion target video content data, and each of the selected face images is reproduced in the reproduced scene. Is displayed on the deletion confirmation screen as a face image appearing on the screen.

  FIG. 11 shows another example of the deletion confirmation screen using the index view screen.

  The deletion confirmation screen in FIG. 11 includes a face image list displayed in the face thumbnail display area and a deletion confirmation dialog. Each face image appearing in the reproduced scene is highlighted in the face image list. FIG. 11 shows an example in which a frame is added to each face image appearing in the reproduced scene. Further, the face image (face image B1 in FIG. 11) previously selected as a playback trigger by the user may be displayed in a large size, for example.

  Further, each face image belonging to the same face image group as the face image selected by the user as a reproduction trigger in the past may be highlighted. A display example in this case is shown in FIG. In FIG. 12, a face image (face image B1) previously selected as a playback trigger by the user and each face image belonging to the same face image group as the face image B1 are highlighted. If two face images corresponding to each of the two persons have been selected by the user as a trigger for the reproduction process so far, one of the two persons is handled. The face image group and the face image group corresponding to the other person are highlighted.

  Next, a configuration example of the content management unit 404 will be described with reference to FIG.

  The content management unit 404 includes a favorite registration unit 501, a reproduction history management unit 502, a content list display processing unit 503, a deletion confirmation screen display processing unit 504, and a deletion processing unit 505.

  The favorite registration unit 501 stores one or more face images selected as favorite face images by the user for each video content data in the favorite database 111B. The user can select an arbitrary face image displayed on the index view screen corresponding to certain video content data as a favorite face image. The selected face image is stored in the favorite database 111B.

  The reproduction history management unit 502 appears for each video content data in a reproduced scene, each face image appearing in the reproduced scene, a face image used as a reproduction trigger for the reproduced scene, and in the reproduced scene. The total reproduction time of each face image (or each face image group), etc. can be managed as reproduction history information. This reproduction history information is stored in the reproduction history database 111C. As information indicating the total reproduction time, for example, the number of times each face image appears in the reproduced scene or the length of time it appears may be used. Further, the number of times the frame is reproduced for each face image may be used as information indicating the total reproduction time.

  A content list display processing unit 503 displays a list of video content data stored in the HDD 111. When the deletion target video content data is selected by the user from the video content data list, the deletion confirmation screen display processing unit 504 displays a deletion confirmation screen for confirming to the user whether or not the deletion target video content data is deleted. . In this case, the deletion confirmation screen display processing unit 504 acquires face image groups corresponding to the deletion target video content data from the database 11A, and displays the face image groups side by side on the deletion confirmation screen. In this case, the deletion confirmation screen display processing unit 504 displays the reproduction history information in the reproduction history database 111C on the deletion confirmation screen based on the user's reproduction operation history with respect to the deletion target video content data. A power face image group (or a face image group to be highlighted among the face image groups displayed on the deletion confirmation screen) can be selected. The deletion confirmation screen display processing unit 504 can also acquire a favorite face image corresponding to the deletion target video content data from the favorite database 111B and display the favorite face image on the deletion confirmation screen.

  The deletion processing unit 505 deletes the deletion target video content data from the HDD 111 when the YES button in the deletion confirmation dialog on the deletion confirmation screen is selected by a user operation.

  Next, the procedure of the display process executed by the face image list display processing unit 301 will be described with reference to the flowchart of FIG.

  First, the face image list display processing unit 301 sorts each face image stored in the database 111A in order of appearance time (appearance time order) of the face images based on time stamp information corresponding to the face images. (Step S101). Next, the face image list display processing unit 301 determines the number of rows and columns in accordance with the face image size to be displayed specified by the user, and, for example, the total time length of the video content data to be indexed by the number of columns. By dividing equally, the time zone assigned to each column (large section) is calculated. Then, the face image list display processing unit 301 selects face images corresponding to the number of rows from the face images belonging to the time zone assigned to the display processing target column (step S102). When the number of face images belonging to the time zone assigned to the display processing target column is larger than the number of rows, the face image list display processing unit 301 preferentially selects face images having a high appearance frequency, for example. It is also possible to execute the process.

  In this case, the face image list display processing unit 301 preferentially selects a face image that frequently appears in the time zone from among the face images belonging to the time zone assigned to the display processing target column. Further, when the number of face images belonging to the time zone assigned to the display processing target column is larger than the number of rows, the face image list display processing unit 301 includes the size information of each face image stored in the database 11A. Based on this, it is also possible to execute processing for preferentially selecting a face image having a large size from face images belonging to the time zone assigned to the display processing target column.

  The size of the face image extracted from the frame showing the close-up face is relatively large. Therefore, the larger the size of the extracted face image, the higher the possibility that the person is more important. Therefore, it is possible to preferentially display a face image of a highly important person by preferentially selecting a large face image.

  Next, the face image list display processing unit 301 displays the selected face images, for example, in order of appearance frequency or time of appearance in a plurality of face image display areas in the display processing target column (step S103). A face image with a higher appearance frequency or a face image with an earlier appearance time is displayed in the upper face image display area.

  The processes in steps S102 and S103 are repeatedly executed while updating the numbers of the display process target columns until the processes for all the columns are completed (steps S104 and S105). As a result, a plurality of face images are displayed in the display mode in the face image display area.

  If the number of face images belonging to the time zone assigned to the display processing target column is smaller than the number of rows, thumbnail images belonging to the corresponding time zone may be displayed in the display processing target column. I can do it.

  When the processing for all the columns is completed (NO in step S104), the face image list display processing unit 301 converts each thumbnail image stored in the database 11A to a thumbnail thumbnail based on the time stamp information of each thumbnail image. The thumbnail images are displayed in a line in the order in which they appear on the display area (step S106).

  Next, the face image list display processing unit 301 reads cheer level information and excitement level information from the database 111A, and from the start position to the end position of the video content data on the level display area according to the cheer level information and the excitement level information. A graph showing a change in the cheer level in the sequence and a graph showing a change in the excitement level in the sequence are displayed (step S107).

  Next, the face image list display processing unit 301 reads the CM section attribute information, the music section attribute information, and the talk section attribute information from the database 111A, and converts them into the CM section attribute information, the music section attribute information, and the talk section attribute information. Based on this, a CM section bar, a music section bar, and a talk section bar are displayed (step S108). In the CM section bar, a bar area indicating the position of the CM section is displayed. Similarly, a bar area indicating the position of the music section is displayed on the music section bar, and a talk bar area indicating the position of the talk section is displayed on the talk section bar.

  Next, with reference to the flowchart of FIG. 15, the procedure of the reproduction process executed by the reproduction processing unit 403 will be described.

  When an event instructing reproduction of video content data is input in response to a user operation (YES in step S301), the reproduction processing unit 403 cooperates with the face image list display processing unit 301 in the face thumbnail display area. It is determined whether or not a certain face image is selected by the user (step S302). If the selected face image exists (YES in step S302), the reproduction processing unit 403 detects the point in time when the selected face image appears based on the time stamp information of the selected face image. (Step S303). Then, the reproduction processing unit 403 starts reproduction of the video content data from the detected time point or a time point before the detected time point (for example, a time point 2 seconds before) (step S304).

  When an event instructing playback of video content data is input in a state where a thumbnail image on the jumble thumbnail display area is selected, playback processing is performed based on the time stamp information of the selected thumbnail image. The unit 403 reproduces the video content data from the time when the selected thumbnail image appears or the time before the time when the selected thumbnail image appears (for example, the time 2 seconds before). Start.

  Thus, both the face image and the thumbnail image can be used as a trigger for reproducing the video content data.

  Next, a procedure of the deletion confirmation process executed by the content management unit 404 will be described with reference to the flowchart of FIG.

  When a list display of video content data is requested by a user operation or when content deletion is requested by a user operation, the content management unit 404 displays a content list screen that presents a list of video content data stored in the HDD 111. The image is displayed on the display screen of the LCD 17 (step S401).

  If video content data to be deleted is selected as a video content data by a user operation (YES in step S402), the content management unit 404 selects a face image group corresponding to the deletion target video content data as the face image group. In accordance with the order corresponding to the time order in which they appear, they are displayed in chronological order on the deletion confirmation screen, and a deletion confirmation dialog is displayed on the deletion confirmation screen (step S403).

  When the user clicks the YES button in the deletion confirmation dialog, that is, when the user decides to delete the deletion target video content data (YES in step S404), the content management unit 404 sends the deletion target video content data from the HDD 111. Delete (step S405).

  As described above, in this embodiment, when deletion of certain video content data is designated by the user, not only a message for reconfirming the deletion / non-deletion of deletion target video content data but also a deletion target A group of face images showing an outline of the video content data is automatically displayed on the deletion confirmation screen. Therefore, information useful for determining whether to delete or not delete the video content data to be deleted can be presented to the user, and user operations relating to deletion of the video content data can be supported.

  Note that, in the present embodiment, description has been made centering on an example in which the face image group extracted from the deletion target video content data is displayed on the deletion confirmation screen. The thumbnail image group may be displayed on the deletion confirmation screen.

  In the present embodiment, it is assumed that each video content data is composed of moving image data and audio data, but each video content data may be composed only of moving image data.

  It is also possible to use video content data in which moving image data and a plurality of still images (such as face images) extracted from the moving image data are packaged. In this case, the still image group can be displayed on the deletion confirmation screen without performing the indexing process.

  Since the procedures of the face image list display process, the playback process, and the deletion confirmation process of the present embodiment can all be realized by software, this software can be implemented in a normal computer through a computer-readable storage medium. Effects similar to those of the embodiment can be easily realized.

  In addition, the electronic device of the present embodiment can be realized not only by the computer 10 but also by various consumer electronic devices such as an HDD recorder, a DVD recorder, and a television device. In this case, the function of the TV application program 202 can be realized by hardware such as a DSP or a microcomputer.

  Further, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine a component suitably in different embodiment.

The invention described in the scope of the claims at the time of the appraisal of the original application will be added below.
[1] A storage device that stores one or more moving image data and a still image group composed of a plurality of still images extracted from the moving image data for each moving image data;
First display processing means for displaying a list of the one or more moving image data;
When deletion target moving image data is selected from the list of moving image data, it is a deletion confirmation screen for confirming whether or not the deletion target moving image data can be deleted, and a still image corresponding to the deletion target moving image data Second display processing means for displaying a deletion confirmation screen in which groups are arranged,
The second display processing means appears in a section that has been reproduced in the sequence from the start to the end of the deletion target moving image data in the still image group corresponding to the deletion target moving image data. A still image group to be displayed on the deletion confirmation screen.
[2] The still image group corresponding to the deletion target moving image data includes a plurality of face images extracted from the deletion target moving image data,
Third display processing means for displaying a list of face images corresponding to moving image data selected from the one or more moving image data on the display screen;
Reproduction means for starting reproduction of the selected moving image data from a time corresponding to a position in the selected moving image data at which the face image selected from the list of face images appears; Equipped,
The second display processing means selects each face image that has been selected as a reference at the time of starting the reproduction, from the face image group corresponding to the deletion target moving image data, as the reproduced section. The electronic device according to [1], wherein the electronic device is displayed as a still image appearing on the deletion confirmation screen.
[3] The second display processing unit may select a face image that has been selected as a reference when starting the reproduction, and each face image corresponding to the same person as the face image to be deleted. The electronic device according to [2], wherein a face image group corresponding to moving image data is selected and each selected face image is displayed on the deletion confirmation screen.
[4] The still image group corresponding to the deletion target moving image data includes a plurality of face images extracted from the deletion target moving image data,
A playback history managing means for managing a total playback time in which a frame corresponding to the face image is played back by playback of the deletion target moving image data for each face image;
The second display processing means selects an upper predetermined number of face images having a long total reproduction time from the face image group corresponding to the deletion target moving image data, and the selected face images are reproduced. The electronic device according to [1], wherein a still image belonging to the selected section is displayed on the deletion confirmation screen.
[5] The second display processing means displays a message for confirming whether or not the deletion target moving image data can be deleted in a region different from the region where the still image groups are arranged. The electronic device according to [1].
[6] Indexing processing means for extracting a plurality of face images from the moving image data and outputting time stamp information indicating a time point at which each extracted face image appears in the moving image data;
Face image list display means for displaying a list of the extracted face images on a display area based on the time stamp information, wherein each face image is arranged on the display area. Means,
Reproduction means for starting reproduction of the moving image data from a time corresponding to a position in the moving image data at which the face image selected from the list of face images appears;
When deletion of the moving image data is designated, a deletion confirmation screen for confirming whether or not the moving image data can be deleted is displayed. The deletion confirmation screen displays the face images corresponding to the moving image data. An electronic device comprising: a deletion confirmation screen display means for performing.
[7] The deletion confirmation screen display means appears in a section of the face image group corresponding to the moving image data that has been reproduced in a sequence from the start to the end of the deletion target moving image data. The electronic device according to [6], wherein a group of face images to be displayed is displayed on the deletion confirmation screen.
[8] The deletion confirmation screen display means is the same as the face image that has been selected as a reference at the time of starting the reproduction from the face image group corresponding to the moving image data to be deleted. The electronic device according to [7], wherein each face image corresponding to the person is displayed on the deletion confirmation screen.
[9] A playback history management means for managing a total playback time in which a frame corresponding to the face image is played back with the previous playback of the deletion target moving image data for each face image;
The deletion confirmation screen display means selects a predetermined number of face images having a long total reproduction time from the face image group corresponding to the deletion target moving image data, and the selected face images are reproduced. The electronic device according to [7], wherein the electronic device is displayed on the deletion confirmation screen as a group of face images appearing in the section.
[10] The deletion confirmation screen display means displays a message for confirming whether or not the deletion target moving image data can be deleted in a region different from the region where the face images corresponding to the moving image data are arranged. [6] The electronic device according to [6].
[11] A display control method for performing display control related to deletion of moving image data stored in a storage device of an electronic device,
Extracting a plurality of still images from each moving image data to be processed;
Displaying a list of one or more moving image data stored in the storage device;
When deletion target moving image data is selected from the list of moving image data, it is a deletion confirmation screen for confirming whether or not the deletion target moving image data can be deleted, and a still image corresponding to the deletion target moving image data Displaying a deletion confirmation screen in which still image groups appearing in a section that has been reproduced in a sequence from the start to the end of the deletion target moving image data among the groups are displayed. A display control method characterized by the above.
[12] The step of displaying the deletion confirmation screen displays a message for confirming whether or not the deletion target moving image data can be deleted in a region different from the region where the still image groups are arranged. The display control method according to [11].

  DESCRIPTION OF SYMBOLS 10 ... Electronic device (computer), 111A ... Database, 113 ... Video processor, 117 ... TV tuner, 301 ... Face image list display process part, 402 ... Indexing control part, 403 ... Reproduction process part, 404 ... Content management part.

Claims (6)

Storage means for storing one or more moving image data and a plurality of face images extracted from the moving image data for each moving image data;
First display processing means for displaying a list of the one or more moving image data;
When deletion target moving image data is selected from the list of moving image data, a deletion confirmation screen for confirming whether or not the deletion target moving image data can be deleted includes a plurality of deletion image moving image data corresponding to the deletion target moving image data. Second display processing means for displaying a deletion confirmation screen on which a plurality of face images appearing in a section that has been reproduced in the deletion target moving image data among the face images are displayed. Features electronic equipment.   The second display processing means includes a face image that has been selected as a reference at the time of starting the reproduction among a plurality of face images corresponding to the deletion target moving image data, and is identical to the face image 2. The electronic apparatus according to claim 1, wherein each face image corresponding to a person is displayed on the deletion confirmation screen. Replay history management means for managing the total replay time for each face image corresponding to the face image replayed in the past replay of the deletion target moving image data;
The second display processing means selects a plurality of face images having a long total reproduction time from a plurality of face images corresponding to the deletion target moving image data, and confirms the deletion of the selected plurality of face images. The electronic device according to claim 1, wherein the electronic device is displayed on a screen.   The second display processing means displays a message for confirming whether or not the deletion target moving image data can be deleted in a region different from the region where the face image corresponding to the moving image data is displayed. The electronic device according to claim 1, characterized in that: A display control method for performing display control related to deletion of one or more moving image data stored in a storage device of an electronic device,
Extracting a plurality of face images from the moving image data for each moving image data;
Displaying a list of the one or more moving image data;
When deletion target moving image data is selected from the list of moving image data, a deletion confirmation screen for confirming whether or not the deletion target moving image data can be deleted includes a plurality of deletion image moving image data corresponding to the deletion target moving image data. Displaying a deletion confirmation screen on which a plurality of face images appearing in a section that has been reproduced in the moving image data to be deleted among the face images are displayed. Method. For each one or more moving image data stored in the storage device, a procedure for extracting a plurality of face images from the moving image data;
Displaying a list of the one or more moving image data;
When deletion target moving image data is selected from the list of moving image data, a deletion confirmation screen for confirming whether or not the deletion target moving image data can be deleted includes a plurality of deletion image moving image data corresponding to the deletion target moving image data. And a step of causing a computer to execute a procedure for displaying a deletion confirmation screen on which a plurality of face images appearing in a section that has been reproduced in the deletion target moving image data are displayed. program.

Images