EP2795248A1 - Apparatus for mobile pattern projection and the use thereof - Google Patents
Apparatus for mobile pattern projection and the use thereofInfo
- Publication number
- EP2795248A1 EP2795248A1 EP13726523.7A EP13726523A EP2795248A1 EP 2795248 A1 EP2795248 A1 EP 2795248A1 EP 13726523 A EP13726523 A EP 13726523A EP 2795248 A1 EP2795248 A1 EP 2795248A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- projector
- mobile computing
- computing device
- computer
- measurement object
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/296—Synchronisation thereof; Control thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/257—Colour aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
- H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
Definitions
- the invention relates to devices and uses for
- DE 41 15 445 AI discloses a method for taking a three-dimensional image of an object according to the active triangulation principle, by means of a video camera having an image memory device, and a laser projector having an optics and a coding and storage device which on the object a Projected code for object marking in the form of light section planes with a predetermined frequency, wherein the projector is synchronized with the video camera, which receives the remarkie ⁇ ments when recording the object.
- US 2002/0162886 A1 discloses a system for dreidimensio ⁇ cal scanning with a device for three-dimensional scanning, which is manually maneuverable and having a profilometer with a light beam projector, an objective and a light detector.
- the object is achieved by a device according to the main claim.
- a device for recording a three-dimensional image of a surface object aufwei ⁇ send object according to the active triangulation principle is claimed with the following components.
- At least one synchronous receiving from Minim ⁇ least another perspective to the projector means the camera device for the synchronous recording of the measurement object with the light pattern.
- the device is characterized in that these means of a mobile-providing, beyond the three-dimensional image of the READY ⁇ lung beaukarti ⁇ ones computing device is provided.
- Apparatus and methods are claimed which allow use of portable small computers additionally as three-dimensional optical measuring devices according to the active triangulation method.
- the mobile beyond the three-dimensional image pickup effetierti ⁇ ones-providing device, a mobile computer, a per- sonal digital assistant, a tablet personal computer or a music player can be.
- all such computer devices include all conventional small computers. For example, so-called
- the camera device and the computer device can be camera and computer of the mobile computing device. According to a further advantageous embodiment, the camera device and the computer device can be camera and computer of the mobile computing device. According to a further advantageous embodiment, the
- Projector device be fixed outside of the mobile computing device.
- the projector device can have optics forming a beam and optics which form the beam on the object to be measured, in front of a flash illumination integrated into the mobile computing device along its optical axis.
- the projector device can have optics forming a beam and optics which form the beam on the object to be measured, in front of a flash illumination integrated into the mobile computing device along its optical axis.
- Projector device have their own lighting device, a beam forming optics and the beam on the measurement object imaging optics. According to a further advantageous embodiment, the projector device can be completely integrated into the mobile computer device.
- the beam forming optics may be a homogeneously illuminated pattern slide.
- the projector device can be supplied with electrical power from the computer device.
- the computer device can be supplied with electrical power from the computer device.
- Computing device be a portable small computer that provides additional functions ⁇ for three-dimensional image recording. Such additional functions may enable communication, music or any other applications beispielswei ⁇ se.
- a device according to the invention for example for the destruction ⁇ free testing of the test object may be used to reverse engineering or for a consumer electronics.
- FIG. 1 shows a conventional embodiment of a method
- Figures 2a to 2e show a first embodiment
- Figures 3a to 3d show a second embodiment
- Figure 4 shows another embodiment of a erfindungsge MAESSEN device
- FIGS. 5a to 5f exemplary embodiments of measurement patterns
- Figure 6 shows various uses of an inventive
- the conventional method of active triangulation uses a projector device 1 for projecting a light source.
- pattern which may be characterized for example by means of a stripe index i.
- Light patterns may be generated, for example, as a laser line, a stripe pattern, or a color pattern.
- Figure la shows a stripe pattern as Lichtmus- ter 3.
- Figure la shows a black and white representation of a color-coded measuring pattern, which has been decorated to a measuring object 5 proji ⁇ .
- a synchronous recording of the light pattern 3 with one or more cameras 7 from egg ⁇ ner different perspective takes place.
- FIG. 1b shows an exemplary embodiment of an SD model of a human face composed of a plurality of measurements as an example of a measuring object 5.
- FIGS. 2 b and 2 c show respective views of the rear side of the computing device 11.
- FIG. 2 b shows a camera device 7 integrated into the computing device 11 on a right side and a flash illumination 13 already integrated into the computing device 11 on a left side.
- FIG. 2 c shows a projector device 1, which is fixed externally to the mobile computing device 11.
- the projector device 1 uses a camera flash, so that the projector device can be referred to as flash projector add-on.
- the projector device 1 is arranged according to figure 2c before integrated in the mobile computing device 11, flash illumination 13 and preferably there fi xed ⁇ .
- FIG. 2d shows the view according to FIG. 2c from above.
- the mobile computing device 11 uses the camera device 7 and the flash illumination 13 to perform a three-dimensional image acquisition. In front of the flash illumination 13 integrated into the mobile computing device 11, the projector device 1 is arranged.
- the projector device 1 has a beam-forming optical system along the optical axis of the flash illumination 13 and an optical system which images the beam onto the measurement object 5.
- FIG. 2 d shows a light pattern 3 that is projected onto a planar measurement object 5.
- the angle ⁇ represents the angle between a Lichtmus ⁇ terstrahl and a viewing beam of the camera device 7.
- the reference symbol B denotes a Triangulati ⁇ onsbasinsline.
- FIG. 2 e again shows the front view according to FIG. 2 a additionally with the exemplarily projected light pattern 3 and a representation of a combination of camera device 7 and projector device 1 using the flash illumination 13 already integrated in the mobile computing device 11.
- FIG. 2 a to 2 e show a first exemplary embodiment according to the invention for the use of a factory-integrated photo flash for the projection of measurement patterns in the sense of active triangulation.
- FIG. 2 a shows an example of a portable small computer in the form of a personal digital assistant (PDA) or smartphone.
- Figure 2b shows a factory TEGRATED increasingly in ⁇ combination of camera means 7 and a photo-flash illumination 13.
- Figure 2c shows a possible exemplary of a projector device 1 for projecting a measuring light pattern 3 using an integrated Flash exp ⁇ illumination 13.
- Figure 2d shows, by way of example, a projected measuring light pattern 3 which can be seen on the surface of the measuring object 5 is reflected and recorded by an integrated camera device 7.
- the light pattern 3 is configured such that a Kor ⁇ spondence between multiple camera image points (pixels) and a plurality of strips or dots can be produced in the measurement sample after taking a picture.
- a geometric mean two ⁇ it performs corresponding lines of sight of the camera device 7, and the projector device 1, for obtaining a surface point in a three dimensional system Koordinatensys-. This corresponds to the conventional method of active triangulation.
- a multiplicity of geometric sections leads to an approximate 3D representation of the surface of the measurement object 5 to be measured.
- FIG. 2e shows the representation according to FIG. 2d from a different perspective.
- Figures 2a to 2e show an inventive embodiment ⁇ example of a modern portable small computer.
- Smartphones, personal digital assistants or tablet computers increasingly have a factory-integrated camera device 7.
- Latest devices also have an integrated photo flash illumination 13.
- This flash illumination 13 can be used as a light source for a pattern projection in the sense of a structured illumination and triangulation.
- a beam-shaping device is used, which uses a homogeneously illuminated corresponding Mus ⁇ ter-Dia. Basically corresponding pattern ⁇ templates are usable.
- the irradiated slide or by strahle template is in turn projected by a abbil ⁇ Denden optics onto the object to be measured.
- the beam-forming and the imaging part of the optics can be integrated in a common projector device 1, which are mounted along the optical axis of the flash illumination 13.
- An integrated camera device 7 in conjunction with the projector device 1 allows the use of additional mobile functions providing computing devices 11 additionally as three-dimensional measuring devices.
- Such 3D detection devices can, for example, for a Non-destructive testing technology for testing the test object 5 can be used.
- Figures 2a to 2e illustrate an embodiment which illuminates with- means of beam shaping and homogenization of a suitable active triangulation pattern, in particular in the form of a Mus ⁇ ter-Dias, light from a flash illumination 13, which is originally used for still images.
- flash flash lights 13 are increasingly being integrated into modern small portable computers, such as smartphones, personal digital assistants or tablet PCs.
- a projector device 1 of the invention also includes an optical system for projecting the pattern slides on an object to be measured 5.
- a system that USAGE addition of a three-dimensional optical measurement is created by the inventive device ⁇ det can be.
- 3D data can be easily carried out by means of wireless data transmission, for example by means of WLAN or Bluetooth or memory cards.
- FIGS. 3 a to 3d show a second embodiment of a device according to the invention.
- a smartphone is proposed as a mobile computing device 11 as a mobile small computer.
- Figure 3a shows a front view of the mobile, additional functions providing Computing device 11, wherein the projector device 1 is fixed outside of the mobile computing device 11.
- the projector device 1 here has its own illumination ⁇ device, a beam forming optics and the beam on the measurement object imaging optics.
- the projector ⁇ gate device 1 may be part of a projector unit, which is mechanically coupled to the mobile computing device 11.
- This projector unit for example, me ⁇ be mechanically fixed releasably on the mobile computing device.
- the projector unit may be pivotally mounted.
- FIG. 3b shows a view from the rear side of the illustration according to FIG. 3a.
- a camera device 7 can be combined with an external projector device 1.
- Figure 3 shows a side view, wherein the projector means is coupled to 1 by the projector unit 2 me ⁇ mechanically to the mobile computing device 11 and an exemplary light pattern 3 projected on the surface of a measurement object. 5
- the spatial arrangement of a Ka ⁇ mera driving 7 to the projector device 1 defines the required for a triangulation baseline B.
- the angle ⁇ is defined by the profile of a pattern to a beam view ⁇ beam.
- 3d shows a front view again in addition to the projected light pattern 3.
- Figures 3a to 3d show a projector device 1 is integrated in a projector unit 2, which is rotatably mechanically coupled to the mobile computing ⁇ nervoriques. 11
- the projector unit 2 can be particularly advantageously powered by the mobile computing device 11 directly.
- Figures 3a to 3d show an external projector unit 2, which has received a projector device 1, for the projection of a light pattern 3 as a measurement pattern in the sense of an active Triangu ⁇ lation.
- FIGS. 3a and 3b show by way of example a portable small computer in the form of a smartphone or a personal digital assistant of an attached external projector unit 2 for the projection of a light pattern 3.
- FIGS. 3c and 3d show, by way of example, a projected measuring pattern.
- the re ⁇ is inflected and recorded by an integrated in the mobile computing device 11 camera device 7 on the surface to be measured of the measuring object. 5
- FIGS. 3c and 3d reference is additionally made to the description of FIG. 2d.
- the pattern projection is now carried out by means of an external projector unit 2.
- an external projector unit 2 for Pattern projection attached to the mobile computing device 11.
- Such a projector unit 2 can be made very compact.
- Pro ⁇ jektoriser 2 can be supplied by means of the mobile computing device with electric current, whereby transferability and Drahtiety of the inventive apparatus result.
- the embodiment of Figures 3a to 3d shows an inventive device with a projector unit 2 projects a suitable for an active triangulation pattern, which provides a possibility for mounting on small portable computer, and optionally a Stromversor ⁇ supply made possible by this.
- a 3D measuring device is created that can perform an active triangulation method.
- FIG. 4 shows a further embodiment of a device OF INVENTION ⁇ to the invention.
- FIG. 4 shows a smartphone as an example of a mobile computing device.
- This front view shows hardware actuators 17 and a touch-sensitive display 19, which may also be referred to as a touch screen.
- Reference numeral 21 denotes controls that are provided only by software. These are in particular so-called icons for switching Before ⁇ transitions, which are excluded by the mobile computing device 11 performs.
- Reference numeral 23 represents an interactive 3D preview of a measuring object 5.
- 4 shows a ⁇ OF INVENTION dung exemplary embodiment according to an integration of an SD measuring device in a small mobile computer. conventional User interfaces can be used simply and effectively for interactive presentation and control of 3D measurement processes.
- FIG 4 a ⁇ integrated devices of mobile computing devices 11 for a product already jection of measuring light patterns 3 are used. Accordingly, an embodiment according to the invention according to FIG. 4 uses already integrated factory-installed projectors in corresponding mobile computer devices.
- the projectors integrated into a media display for example for the presentation of photos or films, can be used for pattern projection in the sense of active triangulation, whereby 3D measurements are simply made possible by only software-related developments.
- a projector device 1, which is required for active triangulation is completely integrated in an already available conventional mobile computing device 11.
- Projection devices or projector devices 1 which are integrated at the factory into portable small computers are used in conjunction with a factory-integrated camera or camera device 7 for 3D measurement according to the active triangulation method.
- an additional benefit that is, the extraction of 3D measurement data is brought about.
- An implementation can simply be executed on the software side. Full integration is particularly advantageous in terms of reduced costs.
- FIG. 4 shows how an integrated screen, that is to say a so-called touch screen, can optionally be used for an interactive visualization of measurement results or for navigation of a 3D model.
- FIGS. 5a to 5f show exemplary embodiments of patterns which are suitable as measurement patterns for recording three-dimensional images. Such patterns can be projected by the erfindungsge ⁇ Permitted device. These light patterns 3 are already known in the art.
- Figure 6 illustrates various uses of a device Vx fiction, modern ⁇ . The from the inventive devices and respective methods resulting 3D measurement devices are distinguished primarily by a very high cost and mobility. Possible fürsge ⁇ offer can be found among others in the field of non-destructive testing, for example in quality control and inspection, reverse engineering, and for example, consumer electronics. By combining several SD recordings, corresponding to a video mode, complex spatial structures can be with zusfelli ⁇ chen sensor systems for determining the location and position changes detected.
- the 2D image content can be imaged onto the 3D surface of the object.
- appropriate lighting for example, by ultraviolet light to make fluorescent or other substances on the object surface visible and map the positions of the object substances localized.
- the present invention proposes a simple integration of a device for recording a three-dimensional image of a measurement object 5 in mobile computing devices 11 which provide additional functions.
- Such integration can be carried out very inexpensively and easily.
- smartphones, tablet computers and personal digital assistants can additionally be used for such image acquisition.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012210872 | 2012-06-26 | ||
PCT/EP2013/061394 WO2014001023A1 (en) | 2012-06-26 | 2013-06-03 | Apparatus for mobile pattern projection and the use thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2795248A1 true EP2795248A1 (en) | 2014-10-29 |
Family
ID=48570140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13726523.7A Withdrawn EP2795248A1 (en) | 2012-06-26 | 2013-06-03 | Apparatus for mobile pattern projection and the use thereof |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150077518A1 (en) |
EP (1) | EP2795248A1 (en) |
KR (1) | KR101591854B1 (en) |
CN (1) | CN104541126A (en) |
WO (1) | WO2014001023A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202013012494U1 (en) * | 2013-07-26 | 2017-01-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Attachment and device for non-contact measuring of a surface |
US20150172431A1 (en) * | 2013-12-13 | 2015-06-18 | Triangus Group Co., Ltd. | Multifunctional protective case for electronic device |
US9389069B2 (en) * | 2014-03-26 | 2016-07-12 | Alces Technology, Inc. | Compact 3D depth capture systems |
KR101562467B1 (en) | 2014-06-03 | 2015-10-23 | 인하대학교 산학협력단 | 3 dimensional measurement device using smart phone |
CN104639689B (en) * | 2015-02-04 | 2017-11-10 | 段云涛 | A kind of projection mobile phone |
DE102015012296A1 (en) * | 2015-09-23 | 2017-03-23 | GL Messtechnik GmbH | Smart Scan, hand-held device for mobile profile measurement of surfaces. |
US10298727B2 (en) | 2016-06-17 | 2019-05-21 | Spin Master Ltd. | Clip for mounting external device to electronic device |
US10571793B2 (en) | 2016-06-17 | 2020-02-25 | Moonlite World Inc. | Image projection device |
US9921461B1 (en) | 2017-09-22 | 2018-03-20 | Spin Master Ltd. | Clip for mounting external device to electronic device |
US10295898B2 (en) | 2016-06-17 | 2019-05-21 | Moonlite World Inc. | Image projection device |
DE102016222244A1 (en) * | 2016-11-14 | 2018-05-17 | Siemens Aktiengesellschaft | Method and device for depth determination of an object |
WO2018229358A1 (en) * | 2017-06-14 | 2018-12-20 | Majo | Method and device for constructing a three-dimensional image |
US10268234B2 (en) | 2017-08-07 | 2019-04-23 | Apple Inc. | Bracket assembly for a multi-component vision system in an electronic device |
US11445094B2 (en) | 2017-08-07 | 2022-09-13 | Apple Inc. | Electronic device having a vision system assembly held by a self-aligning bracket assembly |
US20190102519A1 (en) * | 2017-10-02 | 2019-04-04 | Spectralink Corporation | Targeting adapter for mobile scanning device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4115445C2 (en) | 1990-07-05 | 1994-02-17 | Reinhard Malz | Method for recording a three-dimensional image of an object according to the active triangulation principle and device therefor |
US6508403B2 (en) | 2001-05-04 | 2003-01-21 | Institut National D'optique | Portable apparatus for 3-dimensional scanning |
JP2003207324A (en) * | 2002-01-16 | 2003-07-25 | Olympus Optical Co Ltd | Method and device for acquiring three-dimensional information |
US20060189347A1 (en) * | 2005-02-22 | 2006-08-24 | Bollman William H | Wireless phone device flashlight |
US20070229850A1 (en) * | 2006-04-04 | 2007-10-04 | Boxternal Logics, Llc | System and method for three-dimensional image capture |
EP1901033B1 (en) | 2006-09-12 | 2018-01-17 | Joanneum Research Forschungsgesellschaft mbH | Apparatus and method for mobile contactless measurement, determination and evaluation of body contours |
US8488129B2 (en) * | 2007-10-05 | 2013-07-16 | Artec Group, Inc. | Combined object capturing system and display device and associated method |
US8531650B2 (en) * | 2008-07-08 | 2013-09-10 | Chiaro Technologies LLC | Multiple channel locating |
KR101530930B1 (en) | 2008-08-19 | 2015-06-24 | 삼성전자주식회사 | Pattern projecting apparatus, 3D imaging apparatus having the same, and varifocal liquid lens being used in the same |
US8659764B2 (en) * | 2009-02-27 | 2014-02-25 | Body Surface Translations, Inc. | Estimating physical parameters using three dimensional representations |
JP4983905B2 (en) * | 2009-12-25 | 2012-07-25 | カシオ計算機株式会社 | Imaging apparatus, 3D modeling data generation method, and program |
US20120052908A1 (en) * | 2010-08-31 | 2012-03-01 | Walsin Lihwa Corporation | Pico projector device used with mobile phone |
-
2013
- 2013-06-03 US US14/390,005 patent/US20150077518A1/en not_active Abandoned
- 2013-06-03 CN CN201380034534.XA patent/CN104541126A/en active Pending
- 2013-06-03 KR KR1020147028926A patent/KR101591854B1/en not_active IP Right Cessation
- 2013-06-03 WO PCT/EP2013/061394 patent/WO2014001023A1/en active Application Filing
- 2013-06-03 EP EP13726523.7A patent/EP2795248A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2014001023A1 (en) | 2014-01-03 |
KR20140136042A (en) | 2014-11-27 |
CN104541126A (en) | 2015-04-22 |
US20150077518A1 (en) | 2015-03-19 |
KR101591854B1 (en) | 2016-02-04 |
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