JP2004185204A - Volume rendering image processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a browse of a volume-rendered image created in the past, restoration of a processing state of the image creation, and an edit resumed from the state. <P>SOLUTION: Step 110 generates activation-adapted image data 120 comprising a standard format of two-dimensional image data produced from a volume-rendered image, to which an identifier with which to identify target voxel data and volume rendering parameters producing the volume-rendered image are added. Step 130 displays the two-dimensional image data on the generated activation-adapted image data 120 in a browsable manner. Step 140 restores a processing state of volume rendering from the activation-adapted image data selected through the displayed two-dimensional image data. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to image processing in volume rendering, and more particularly to a volume rendering image processing method capable of restoring the processing state of a volume rendering operation.
[0002]
[Prior art]
The advent of Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI), which have made it possible to directly observe the internal structure of the human body with the progress of image processing technology using computers, is a technology that has revolutionized the medical field, Medical diagnosis using a tomographic image of a medical device is widely performed. Furthermore, in recent years, as a technology for visualizing the three-dimensional structure inside an object that is difficult to understand only with a tomographic image, volume rendering that directly draws a three-dimensional structure image from three-dimensional digital data of an object obtained by CT or the like is used in various fields. Have been.
[0003]
Ray casting is known as an excellent technique for volume rendering. In ray casting, a virtual ray (ray) is irradiated to an object from a virtual starting point, and an image of virtual reflected light from the inside of the object is formed on a virtual projection plane, so that a three-dimensional structure inside the object is seen through. Is a method of forming Non-patent document 1 describes a basic theory of ray casting.
[0004]
[Non-patent document 1]
"New Generation 3D CT Diagnosis" Nankodo Co., Ltd., November 1, 1995
[0005]
The point of ray casting will be described. A small unit area which is a constituent unit of the three-dimensional area of the object is called a voxel, and unique data representing characteristics such as a density value of the voxel is called a voxel value. The entire object is represented by voxel data, which is a three-dimensional array of voxel values. Usually, two-dimensional tomographic image data obtained by CT or the like is stacked in a direction perpendicular to the tomographic plane, and necessary interpolation is performed to obtain three-dimensional array voxel data.
[0006]
It is assumed that the virtual reflected light with respect to the virtual ray emitted to the object from the virtual start point is generated according to the opacity (opacity value) artificially set with respect to the voxel value. Normally, the opacity value takes a value from 0 to 1, with a value of 0 being transparent, a value of 1 being opaque, and a value between them being translucent. Further, a gradient of the voxel data, that is, a normal vector is obtained to capture a virtual surface, and a shading coefficient for shading is calculated from a cosine of an angle formed by the virtual ray and the normal vector. The virtual reflected light is calculated by multiplying the intensity of the virtual light beam applied to the voxel by the opacity of the voxel and the shading coefficient. By accumulating the virtual reflected light along the virtual light ray, an image image that sees through the three-dimensional structure inside the object on the virtual projection plane is obtained.
[0007]
The volume rendering image obtained in this way is a three-dimensional color image described by the following numerous parameters (volume rendering parameters) for the target voxel data.
[0008]
・ Display information (magnification, angle, position)
・ Color (coloring)
・ Opacity curve (correspondence table of voxel value and opacity value)
・ Mask information (cut information)
・ Shading information (shading type)
・ Light source (type, direction, intensity, etc.)
・ Label information (text, mark, measurement data)
Other
[0009]
[Problems to be solved by the invention]
In actual medical diagnosis, a volume rendering image is observed from various viewpoints while updating the settings of volume rendering parameters for voxel data of interest one after another. The settings of the volume rendering parameters are changed at the discretion of the user according to the observed diagnostic situation. Since an appropriate opacity value differs depending on the diagnosis target, the user performs setting for each voxel data. In addition, in order to make it easier to observe a region of interest (such as an affected area), peripheral tissues that interfere with the target area are removed or an appropriate color is set. In addition, the user needs to perform various complicated operations and set many parameters. If all parameters are appropriately set and a volume rendering image satisfying the purpose of diagnosis is obtained, the image is saved and the editing operation is completed.
[0010]
As described above, the operation of appropriately setting the volume rendering parameters in the medical diagnosis is complicated and time-consuming, and when the operation is interrupted on the way, it is necessary to reset many parameters again to restore the operation state. Is hard. Further, it is often necessary to look at a volume rendering image created and saved before, restore the processing state at the time of creating the image, and continue editing work from there. However, in order to restore the processing state at the time of image creation, many volume rendering parameters must be accurately set from the beginning, which is troublesome, and if the parameter setting values are not recorded, the processing state is restored. It is difficult.
[0011]
During volume rendering work, it is not possible to save an image displayed by the 3D image processing system as 2D image data in any of the standard formats (BMP, JPEG, GIF, DICOM (standard format of medical image), etc.). Usually possible. The image data in such a standard format can be browsed by a general application. However, in order to restore the processing state at the time of creating the three-dimensional image with respect to the browsed image, select the correct voxel data and set the volume rendering parameter. Must be set correctly. At this time, if the voxel data names and parameter setting values are unknown, accurate restoration is extremely difficult.
[0012]
It is also conceivable to save the work state data in a file, such as dumping the memory data as it is during the volume rendering work. The work state can be restored by reading this file into the three-dimensional image processing system. However, since the work state data includes voxel data, there is a disadvantage that the data capacity becomes huge.
[0013]
In addition, since the work state data is data in a unique format, it cannot be easily handled by a system other than a dedicated system, and it is difficult to display, search, edit, and the like on other systems. Further, the compatibility may not be maintained with the version upgrade of the three-dimensional image processing system itself, and there is a possibility that the previously saved work state data may become invalid.
[0014]
Another method is to save the volume rendering parameters to a file during the volume rendering operation as a template for the operation. The three-dimensional image processing system can restore the work state by reading the specified template after reading the specified voxel data.
[0015]
This method has an advantage that it is less likely to be affected by compatibility problems due to version upgrade of the three-dimensional image processing system itself. Further, a template including parameter setting values has a small data capacity. However, since there is no information on voxel data in the template, a meaningless work state will be generated if correct voxel data is not specified.
[0016]
The present invention has been made in view of the above circumstances, and is intended to browse a volume rendering image created in a medical diagnosis performed in the past, accurately restore a processing state at the time of image creation, and continue editing work from that state. It is an object to provide a volume rendering image processing method that enables it.
[0017]
[Means for Solving the Problems]
The above object of the present invention can be solved by the following means. Note that, in the present invention, activation means activating a series of processes for restoring a work state.
[0018]
The volume rendering image processing method according to claim 1, wherein the volume rendering parameter is updated for the target voxel data while generating a desired volume rendering image. Generating activation-compatible image data by adding an identifier for identifying target voxel data to the standard-format two-dimensional image data and a volume rendering parameter for obtaining the volume rendering image; and Displaying the two-dimensional image data of the activated corresponding image data in a browsable manner, and volume rendering by the activated corresponding image data selected based on the displayed two-dimensional image data It is intended to include the step of restoring the processing state of work.
[0019]
An image processing terminal according to a third aspect is an image processing terminal that executes the volume rendering image processing method according to the first aspect, wherein the two-dimensional image data of the activation-compatible image data is displayed and displayed. The voxel data corresponding to the identifier of the activation corresponding image data selected based on the obtained two-dimensional image data is obtained from the image processing server, and the volume rendering parameter of the activation corresponding image data is obtained for the obtained voxel data. It applies volume rendering.
[0020]
An image processing server according to a sixth aspect is an image processing server for executing the volume rendering image processing method according to the first aspect, based on the two-dimensional image data displayed in a viewable manner on an image processing terminal. Acquiring voxel data corresponding to the identifier of the activation-compatible image data selected by the image processing terminal, and performing volume rendering by applying a volume rendering parameter of the activation-compatible image data to the obtained voxel data It is.
[0021]
According to the first, third and sixth aspects of the present invention, the two-dimensional image data can be converted into a general application by including the two-dimensional image data in the standard format, the identifier of the voxel data, and the volume rendering parameter in the activation-compatible image data. However, it can be viewed as a normal image, the desired working state can be easily and quickly restored in the three-dimensional image processing system, and even if the user does not store the parameter setting values and the desired voxel data, The operation can be resumed after browsing a large number of saved activation-compatible images and selecting a target image.
[0022]
The volume rendering image processing method according to claim 2 is the volume rendering processing method according to claim 1, wherein the activation-compatible image data includes first image data including the volume rendering parameter, the two-dimensional image data, The image data is divided into second image data including an identifier for identifying the first image data, and an identifier for identifying the voxel data is assigned to one of the first and second image data to generate the image data. It includes a process.
[0023]
An image processing terminal according to a fourth aspect is an image processing terminal that executes the volume rendering image processing method according to the second aspect, wherein the two-dimensional image data of the second image data is displayed and viewed. Voxel data corresponding to the identifier of the second image data selected based on the obtained two-dimensional image data is obtained from the image processing server, and the volume rendering parameter of the first image data is obtained for the obtained voxel data. This is used to perform volume rendering.
[0024]
An image processing server according to claim 7 is an image processing server for executing the volume rendering image processing method according to claim 2, wherein the second image data of the second image data displayed so as to be browsed on an image processing terminal. Acquiring corresponding voxel data from the second image data selected by the image processing terminal based on the three-dimensional image data, and applying a volume rendering parameter of the first image data to the acquired voxel data to obtain a volume Performs rendering.
[0025]
According to the second, fourth, and seventh aspects of the present invention, the activation-compatible image is generated by being divided into the first image data including the volume rendering parameter and the second image data including the two-dimensional image data. The activation-compatible image data can be handled separately as the first image data and the second image data. For example, if only the second image data is registered and stored in the image server, Since the volume rendering parameters are not shared by the third party, it is possible to prevent a third party from analyzing the three-dimensional image from the volume rendering parameters.
[0026]
According to a fifth aspect of the present invention, in the image processing terminal according to the third or fourth aspect, a volume rendering operation is performed by applying a previously registered volume rendering parameter to newly input voxel data. , For generating activation-compatible image data.
[0027]
An image processing server according to claim 8 performs a volume rendering operation by applying a previously registered volume rendering parameter to newly input voxel data in the image processing server according to claim 6 or 7. , For generating activation-compatible image data.
[0028]
According to the fifth and eighth aspects of the present invention, volume rendering is automatically performed on newly input voxel data, and a series of activation-compatible image data is created. In addition, since the user can quickly select an object that fits the purpose, restore the processing state of the volume rendering work, and proceed with observation, efficient medical diagnosis can be promoted.
[0029]
10. The volume rendering image processing program according to claim 9, wherein the volume rendering image processing program generates a desired volume rendering image while updating a volume rendering parameter with respect to target voxel data. Means for generating activation-compatible image data constituted by adding an identifier for identifying voxel data of interest to a standard format of two-dimensional image data obtained from an image and a volume rendering parameter for obtaining the volume rendering image Means for displaying the two-dimensional image data of the activation-compatible image data in a viewable manner, an identifier of the activation-compatible image data selected based on the displayed two-dimensional image data Means for obtaining a corresponding voxel data, and to function as the activation applies volume rendering parameters corresponding image data means for performing volume rendering on the acquired voxel data.
[0030]
According to the ninth aspect of the present invention, the activation-compatible image data includes two-dimensional image data in a standard format, an identifier of voxel data, and a volume rendering parameter. As a result, it is possible to provide image data capable of easily and quickly restoring a target working state in the three-dimensional image processing system. In addition, by receiving the activation-compatible image data generated by the execution of the program, the user can browse a large number of stored images without storing parameter setting values and target voxel data. The operation can be resumed after the target image is selected.
[0031]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a process chart showing a volume rendering image processing method according to an embodiment of the present invention.
[0032]
In FIG. 1, reference numeral 110 denotes a volume rendering work process in the three-dimensional image processing system, 120 denotes activation-compatible image data according to the present invention, 130 denotes a process of browsing the activation-compatible image data and searching for a target image, and 140 denotes a target image. The steps of restoring the processing state of the volume rendering work in the three-dimensional image processing system based on the selected activation corresponding image data will be described.
[0033]
Further, in FIG. 1, reference numeral 121 denotes an identifier of voxel data embedded in the activation-compatible image data 120, and 122 denotes a volume rendering parameter embedded in the activation-compatible image data 120. The volume rendering parameters 122 include the following parameters for restoring the processing state during the volume rendering operation.
[0034]
・ Display information (magnification, angle, position)
・ Color (coloring)
・ Opacity curve (correspondence table of voxel value and opacity value)
・ Mask information (cut information)
・ Shading information (shading type)
・ Light source (type, direction, intensity, etc.)
・ Label information (text, mark, measurement data)
Other
[0035]
Next, a three-dimensional image processing method using the processing steps shown in FIG. 1 will be described. In the volume rendering operation 110, a new volume rendering image is rendered each time a user using the three-dimensional image processing system updates the volume rendering parameters. The activation correspondence image 120 may be explicitly generated and stored by the user when a target volume rendering image is obtained, or may be automatically generated at regular time intervals.
[0036]
The activation-compatible image data 120 is for storing the volume rendering image drawn by the three-dimensional image processing system as two-dimensional image data in any standard format, and as described above, the voxel data identifier 121 and The volume rendering parameter 122 is added to the image data.
[0037]
Here, when the identifier of the voxel data and the volume rendering parameter are added to the image data, the additional data may be embedded in the header information part of the two-dimensional image data in the standard format, or may be embedded in the image part. In the former case, for example, in a JPEG or DICOM format, a user-defined area can be created in the header portion, and thus additional data can be embedded in that area. The latter uses technology such as digital watermarking that embeds other data in the image data using the redundancy of the image data, and a technology that does not have a noticeable effect on the quality of the rendered image even if a small amount of data is embedded. Also known as
[0038]
In the step 130 of searching for an image of the activation-compatible image data, the image is drawn using the stored activation-compatible image data 120 to search for an image drawn in the past volume rendering operation. Since the stored two-dimensional image data is standard-format image data, it can be easily and instantly drawn from another application. For example, it is possible to easily search by reducing the image and displaying it in a list. it can.
[0039]
In the step 140 of restoring the processing state during the volume rendering operation, the voxel data indicated by the identifier of the voxel data is read in accordance with the activation corresponding image data selected in the step 130 of retrieving the image, and the voxel data is read based on the volume rendering parameter. By performing volume rendering, the processing state at the time of generation of the selected image is restored. In this manner, the editing operation can be continued from the selected processing state at the time of image generation.
[0040]
As described above, according to the volume rendering image processing method of the present embodiment, the activation-compatible image data 120 does not include the voxel data and thus has a small capacity, and the image is stored as standard two-dimensional image data. Application can be viewed as a normal image, and the information necessary for restoring the processing state at the time of image generation in the three-dimensional image processing system is embedded. It can be restored, and the user can browse the large number of stored images, select the desired image, and resume work even if the user does not store important information such as parameter setting values and target voxel data can do.
[0041]
FIG. 2 is a diagram showing an embodiment of a volume rendering image processing system that executes the volume rendering image processing method according to the present invention. In FIG. 2, reference numeral 210 denotes a medical image server that stores voxel data for medical diagnosis and activation-compatible image data, reference numerals 221 and 222 denote three-dimensional image processing systems connected to the medical image server 210, and reference numeral 230 denotes a medical image server 210. Is a medical image input device that provides voxel data to a medical image input device. The medical image server 210 and the three-dimensional image processing systems 221 and 222 adopt a configuration connected to each other via a network, or a configuration in which the three-dimensional image processing system itself has the function of a medical server.
[0042]
In the system configured as shown in FIG. 2, the three-dimensional image processing system 222 selects and reads voxel data from the medical image server 210, performs volume rendering work, and sends the obtained activation-compatible image data to the medical image server 210. Register and save.
[0043]
The arbitrary three-dimensional image processing system 221 reads the activation-compatible image data registered and stored in the medical image server 210, searches while drawing the image, and indicates the voxel data identifier included in the selected activation-compatible image data. The voxel data can be obtained from the medical image server 210, the processing state at the time of generating the image can be restored to its own system, and editing can be performed on it.
[0044]
As described above, according to the volume rendering image processing system of the present embodiment, compared to the case where voxel data is simply stored in the medical image server 210, activation-compatible image data is also registered and stored. The work state at the time of creation can be shared between the three-dimensional image processing systems.
[0045]
Also, when searching for voxel data in the three-dimensional image processing system 221, it is not necessary to perform volume rendering from the voxel data, and the image can be browsed quickly, so that the voxel data can be searched efficiently. It is also possible to obtain an effect that the amount of data transfer on the network can be reduced.
[0046]
In the case of a personal work state in which the activation-compatible image data does not need to be shared among a plurality of three-dimensional image processing systems, the activation-compatible image data is stored in the medical image server without being stored in the medical image server. You may save it.
[0047]
FIG. 3 is a diagram showing an embodiment of another volume rendering image processing system to which the volume rendering image processing method according to the present invention is applied. In FIG. 3, reference numeral 310 denotes a medical image server that stores voxel data for medical diagnosis and activation-compatible image data; 321, 322, and 323, three-dimensional image processing systems connected to the medical image server 310; The medical image input device provides voxel data to the server 310. The relationship between the three-dimensional image processing systems 321, 322, 323 and the medical image server 310 is the same as in FIG.
[0048]
In the system configured as shown in FIG. 3, similarly to the volume rendering image processing system shown in FIG. 2, the three-dimensional image processing system 321 selects and reads voxel data from the medical image server 310 and performs volume rendering work. Then, the obtained activation-compatible image data is registered and stored in the medical image server 310.
[0049]
Further, in the volume rendering image processing system according to the present embodiment, the three-dimensional image processing system 321 performs the volume rendering parameter obtained in the process of creating the activation-compatible image data as described above, or a systematic setting in advance. The set volume rendering parameters can be registered and stored in the medical image server 310.
[0050]
Here, when new voxel data is registered in the medical image server 310 from the medical image input device 330, the volume rendering is automatically performed in accordance with the previously registered volume rendering parameters, and a series of activation-compatible images Data is created. These are stored as activation-compatible image data corresponding to the new voxel data, and can be immediately viewed from the three-dimensional image processing system 322 or the like.
[0051]
If a plurality of volume rendering parameters are registered, a plurality of pieces of activation-compatible image data corresponding to each volume rendering parameter are created for the same voxel data. In this case, the user can select one having a parameter setting value most suitable for the purpose from among a plurality of activation corresponding image data corresponding to the same voxel data. For example, for the voxel data of the chest, data that emphasizes the heart, data that emphasizes the lungs, data that emphasizes the ribs, and the like that match the purpose can be selected. The user can quickly select the one that suits the purpose by browsing the multiple activation-capable image data, and by acquiring this and restoring the processing state of the volume rendering work, the processing obtained. The work can be proceeded starting from the state, and efficient medical diagnosis can be promoted.
[0052]
In the embodiment described above, the activation-compatible image data having both the standard format two-dimensional image data and the volume rendering parameter has been described. However, the image data including the two-dimensional image data and the image data including the volume rendering parameter are activated. You may make it comprise the image data corresponding to a tivation.
[0053]
FIG. 4 shows the configuration of activation-compatible image data. FIG. 4A shows activation-compatible image data 120 including two-dimensional image data and volume rendering parameters, and FIG. 4B shows volume rendering parameters. The activation-compatible image data 420 includes first image data 420a including the first image data 420a and second image data 420b including the two-dimensional image data. The first image data 420a includes an identifier for identifying the voxel data, and the second image data 420b includes an identifier for identifying the first image data 420a. Note that an identifier for identifying voxel data may be included in the second image data 420b.
[0054]
According to the activation-compatible image data 120 shown in FIG. 4A, when it is made public to the medical image server, the volume rendering parameter included in the activation-compatible image data 120 is also made public. According to the activation-compatible image data 420 shown in ()), only the second image data 420b is disclosed to the medical image server, thereby preventing a third party from analyzing the three-dimensional image from the volume rendering parameter. it can. Further, since it is only necessary to transfer the second image data 420b including the two-dimensional image data, the data transfer amount on the network is reduced. Therefore, the data transfer time between the medical image server and the three-dimensional image processing system is shortened, and registration to the medical image server and display on the three-dimensional image processing system can be performed quickly.
[0055]
In the embodiment described above, when the volume rendering image processing method of the present invention is executed using a medical image server (image processing server) and a three-dimensional image processing system (image processing terminal), voxel data and activation-compatible image data Has been described in one of the medical image server and the three-dimensional image processing system, and the volume rendering is performed by the three-dimensional image processing system. Any of these methods may be executed in consideration of the processing capability of the processing system. For example, the three-dimensional image processing system in the case where the medical image server has executed all the processes only needs to display the processes executed by the medical image server, and can significantly reduce the load on the three-dimensional image processing system.
[0056]
【The invention's effect】
As described above, according to the first, third, and sixth aspects of the present invention, activation-compatible image data includes two-dimensional image data in a standard format, voxel data identifiers, and volume rendering parameters. The image data can be viewed as a normal image even in a general application, and the target working state can be easily and quickly restored in the three-dimensional image processing system. The user can store the parameter setting values and the target voxel data. Even if not, the user can browse a large number of stored activation-compatible images, select a target image, and resume the operation.
[0057]
According to the second, fourth, and seventh aspects of the present invention, the activation-compatible image is generated by being divided into the first image data including the volume rendering parameter and the second image data including the two-dimensional image data. The activation-compatible image data can be handled separately as the first image data and the second image data. For example, if only the second image data is registered and stored in the image server, Since the volume rendering parameters are not shared by the third party, it is possible to prevent a third party from analyzing the three-dimensional image from the volume rendering parameters.
[0058]
According to the fifth and eighth aspects of the present invention, volume rendering is automatically performed on newly input voxel data, and a series of activation-compatible image data is created. In addition, since the user can quickly select an object that fits the purpose, restore the processing state of the volume rendering work, and proceed with observation, efficient medical diagnosis can be promoted.
[0059]
According to the ninth aspect of the present invention, the activation-compatible image data includes two-dimensional image data in a standard format, an identifier of voxel data, and a volume rendering parameter. As a result, it is possible to provide image data capable of easily and quickly restoring a target working state in the three-dimensional image processing system. In addition, by receiving the activation-compatible image data generated by the execution of the program, the user can browse a large number of stored images without storing parameter setting values and target voxel data. The operation can be resumed after the target image is selected.
[Brief description of the drawings]
FIG. 1 is a process chart showing a volume rendering image processing method according to an embodiment of the present invention.
FIG. 2 is a diagram showing an embodiment of a volume rendering image processing system that executes a volume rendering image processing method according to the present invention.
FIG. 3 is a diagram showing an embodiment of a volume rendering image processing system to which a volume rendering image processing method according to the present invention is applied.
FIG. 4 is a diagram showing a configuration of activation-compatible image data according to the present invention.
[Explanation of symbols]
110 Volume rendering work process
120, 420 Activation-compatible image data
121 Voxel data identifier
122 Volume rendering parameters
130 Step of Retrieving Image of Activation-Enabled Image Data
140 Step of restoring processing state of volume rendering work
210, 310 Medical image server
221, 222, 321, 322, 323 three-dimensional image processing system
230, 330 Medical image input device

Claims (9)

A volume rendering image processing method for generating a desired volume rendering image while updating volume rendering parameters for voxel data of interest,
Generating activation-compatible image data by adding an identifier for identifying target voxel data and a volume rendering parameter for obtaining the volume rendered image to two-dimensional image data in a standard format obtained from the volume rendered image The process of
Displaying the two-dimensional image data of the generated activation-compatible image data in a viewable manner;
Restoring the processing state of the volume rendering work with the activation corresponding image data selected based on the displayed two-dimensional image data;
And a volume rendering image processing method. The activation corresponding image data is divided into first image data including the volume rendering parameter and second image data including an identifier for identifying the two-dimensional image data and the first image data, 2. The volume rendering image processing method according to claim 1, further comprising a step of giving an identifier for identifying the voxel data to one of the first and second image data to generate the data. An image processing terminal that executes the volume rendering image processing method according to claim 1,
The two-dimensional image data of the activation-compatible image data is displayed in a viewable manner, and voxel data corresponding to the identifier of the activation-compatible image data selected based on the displayed two-dimensional image data is acquired from the image processing server. An image processing terminal that performs volume rendering by applying a volume rendering parameter of the activation-compatible image data to the acquired voxel data. An image processing terminal that executes the volume rendering image processing method according to claim 2,
Displaying the two-dimensional image data of the second image data in a viewable manner, acquiring voxel data corresponding to an identifier of the second image data selected based on the displayed two-dimensional image data from an image processing server; An image processing terminal for performing volume rendering by applying a volume rendering parameter of the first image data to the acquired voxel data. 5. The image according to claim 3, wherein a volume rendering operation is performed by applying a previously registered volume rendering parameter to the newly input voxel data to generate activation-compatible image data. Processing terminal. An image processing server for executing the volume rendering image processing method according to claim 1,
The voxel data corresponding to the identifier of the activation-compatible image data selected by the image processing terminal is acquired based on the two-dimensional image data displayed so as to be viewable on the image processing terminal. An image processing server that performs volume rendering by applying a volume rendering parameter of image data corresponding to tivation. An image processing server for executing the volume rendering image processing method according to claim 2,
The corresponding voxel data is obtained from the second image data selected by the image processing terminal based on the two-dimensional image data of the second image data displayed so as to be browsed on the image processing terminal. An image processing server performing volume rendering by applying a volume rendering parameter of the first image data to the image processing server. 8. The image according to claim 6, wherein a volume rendering operation is performed by applying a previously registered volume rendering parameter to newly input voxel data to generate activation-compatible image data. Processing server. A volume rendering image processing program for generating a desired volume rendering image while updating volume rendering parameters for voxel data of interest, comprising:
Generating activation-compatible image data by adding an identifier for identifying target voxel data and a volume rendering parameter for obtaining the volume rendered image to two-dimensional image data in a standard format obtained from the volume rendered image Means to
Means for displaying the two-dimensional image data of the activation-compatible image data in a viewable manner;
Means for acquiring voxel data corresponding to the identifier of the activation-compatible image data selected based on the displayed two-dimensional image data;
Means for performing volume rendering by applying a volume rendering parameter of the activation corresponding image data to the obtained voxel data,
A volume rendering image processing program characterized by functioning as:

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