CN2911717Y - Raster tracer in free 3-D displaying device - Google Patents
Raster tracer in free 3-D displaying device Download PDFInfo
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- CN2911717Y CN2911717Y CN200620074323.6U CN200620074323U CN2911717Y CN 2911717 Y CN2911717 Y CN 2911717Y CN 200620074323 U CN200620074323 U CN 200620074323U CN 2911717 Y CN2911717 Y CN 2911717Y
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- 239000000700 radioactive tracer Substances 0.000 title 1
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 238000013519 translation Methods 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 6
- 239000013078 crystal Substances 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 210000003128 head Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001364 causal effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to an optical grating follow-up device in an auto-stereoscopic display. A slit optical grating producing a stereoscopic pattern is arranged on the rear part of the display, a camera is positioned on the upside or the underside of the display crystal screen for capturing and confirming the face position of a watcher; the optical grating is arranged on the shift platform following up the head of the user and controlling the side to side movement; the shift control platform controls the optical grating movement; the adjustment of the optical grating position is realized through the movement of the shift platform. Through detecting the information on the user face position, and providing an optimum stereoscopic display window for the watcher, the stereoscopic angular field is enlarged.
Description
Technical field
The utility model relates to the method and apparatus of grating servo-actuated of method to set up and device, the especially three-dimensional display of three-dimensional display.
Background technology
Three-dimensional lcd technology based on parallax is of long duration.But the demonstration of traditional stereo-picture need be by aid, as polarised light glasses, macyscope etc.This must limit its application in some field.And if adopt free 3 D display technology, the beholder just can bore hole see stereoeffect.Domestic in the existing remarkable progress of the research aspect this.Based on LCD, by the parallax illumination light source that parallax grating forms, realize that free stereo shows, be a kind of new auto-stereoscopic display.But, also be that most possibly to realize and take two minimum width of cloth stereo-pictures of resource right if the image resource of free stereo adopts international, the problem that will bring beholder's angular field of view to be restricted thus.Because the parallax illumination light source that parallax grating forms can only bring stereoeffect to the beholder in less angle, its application is limited.
Summary of the invention
The utility model purpose is: in order to address the above problem, propose a kind of utilization observer's (observer's head) is carried out the device with motion tracking, be used to realize the scheme that the wide visual angle of three-dimensional liquid crystal shows, promptly survey the information of beholder people's face position, and best stereo display window offered the beholder all the time, thereby enlarge the perspective view scope.
The device of grating servo-actuated in the auto-stereoscopic display, the rear portion in display are provided with the slit grating that produces space pattern, place camera above or below the display crystalline substance shields, and are used for catching and definite onlooker's face location; Grating is located on the displacement platform that carries out side-to-side movement control along with onlooker's head tracking; Displacement control platform control grating moves; By moving of translation stage, realize the adjustment of stop position.The window of three-dimensional imaging is followed the beholder all the time, and like this, no matter beholder's eyes can be watched stereo-picture for which position, have enlarged the visual angle of three-dimensional display.
Grating is by the control of displacement control platform; By moving of translation stage, realize the adjustment of stop position.
Catch and scheme that the method for definite onlooker's face location can adopt the applicant to propose simultaneously: place camera by the liquid crystal display top, catch and definite onlooker's face location; Employing utilizes the structured light generation device that people's face is initiatively throwed based on people's face-positioning method of structured light, with image-pickup device structural light stripes is extracted; Structured light is that the concavo-convex relatively surperficial glazed thread that level (or vertical) is projeced into people's face will bend; Direction with the row of one dimension convolution factor pair pattern matrix is carried out convolution, and initial striped obtains refinement and selects suitable threshold to extract striped; People's face pre-determined bit based on vertical integral projection: according to the vertical integral projection formula, obtaining reacting face characteristic is vertical integral projection, and finishes people's face pre-determined bit based on vertical integral projection at the spike of image capture people face observation scope; Accurately locate: the feature that people's structural light stripes on the face obviously protrudes according to people's nose produces transition clearly, its striped is compared obviously downwards when vertical light (or bending) bending with other stripeds, integral projection is found out the minimum point of vertical integral projection in vertical direction, and, determine people's face center from the minimum point coordinate figure of domain integral projection according to the architectural feature of people's face symcenter.
The utility model effect by surveying the information of beholder people's face position, and offers the beholder all the time with best stereo display window, thereby enlarges the perspective view scope.Can adopt modes such as single-chip microcomputer that the displacement of stepping motor is controlled.Single-chip microcomputer receives data-signal, by driver, drives stepping motor and moves to corresponding position (by the stop position decision of system).Stepping motor adopts subdivision driver control, can realize moving of micro-displacement.
Description of drawings
Fig. 1 is the displacement control method synoptic diagram of the utility model step motor control translation stage and optical grating constitution
Fig. 2 is the space distribution synoptic diagram between the effective viewing area of stereotelevision
Fig. 3 single-chip microcomputer displacement control program process flow diagram,
People's face 1, grating 2, displacement control translation stage 3, grating move to left 4, people's face direction of arrow 6 that horizontal move left and right direction 5, grating move to right before screen, camera 7, liquid crystal display 8.
Embodiment
Onlooker's head tracing system is a kind of causal system that can follow-observation person's change in location, as shown in Figure 1.The display device of stereo-liquid crystal display device is a liquid crystal display, and it is positioned at the outermost layer of structure, is used for display image; The CMOS camera is placed in the top of liquid crystal display, is used for catching people's face position; The back of liquid crystal display is a grating.Grating is by the control of displacement control platform.By moving of translation stage, can realize the adjustment of stop position.When people's face was in the A observation place of screen center normal to screen normal direction, the position of grating was in A '; Then work as people's face and depart from A, when moving to the B viewing location left, stop position is also correspondingly adjusted to B '; In like manner, when people's face moved right C ' viewing location, stop position also can be adjusted to C '.We suppose that the window width that can observe best stereoeffect is B when the beholder is in the A position
0
Generally speaking, having only when people's face is in A is that center, width are B
0The stereo window scope in the time, the beholder can observe best stereoeffect.This has just caused the beholder to get the visual angle being restricted.Therefore, in order to enlarge the visual angle of stereo display, must adjust relative position between the liquid crystal display of grating and display image according to beholder's face location, promptly carrying out the microfacies potential difference regulates, thereby make beholder's earthquake head position, when moving to B window or C window ranges, still can watch best stereoeffect from the A window.
As shown in Figure 2, and in people's face is in effective viewing area (L, in the time of R), beholder's right and left eyes can only be watched left image and right image just respectively, and this moment, three-dimensional display had best stereo display effect
[1]And, in the stereo window scope, the influence that the observation stereoeffect is not changed by beholder's head position.But in the time of outside the beholder moves to stereo window, human eye observation stereo-picture can feel fuzzy, and just need according to people's face position the position of grating to be adjusted this moment.As long as the displacement of grating and the displacement of people's face position are consistent,, still can obtain best observation effect even the beholder is in outside the stereo window.
Moving of grating, be to realize, reduce vibration, improve stepping accuracy because stepper motor can utilize segmentation to drive by motion by the translation stage of step motor control, therefore, we adopt the sub-circuit drive stepping motor to reach the accurate purpose that the displacement control desk moves that promotes.Control desk is provided with the movement transferring that the angular displacement of stepper motor is converted to the horizontal shift of translation stage by screw rod.
Stop position adjustment amount: Δ p=B
0* β, in the formula: Δ p is the grating amount of movement; B
0Be the stereo window width; β is an imaging projection ratio, gets 800
-About 1200.
Program circuit as shown in Figure 3.At first, set up single-chip microcomputer and upper machine communication by the RS-232 serial communication.When people's face moves in display screen the place ahead, its corresponding coordinate information will be transferred to single-chip microcomputer by host computer.Single-chip microcomputer receives and stores this coordinate figure, afterwards, by judgment processing, exports the pulse number of the control step motor corresponding with coordinate information, thereby realizes that single-chip microcomputer is to step motor control.Now be applied in the control device of three-dimensional display.
Claims (4)
1, the device of grating servo-actuated in the auto-stereoscopic display, the rear portion in display are provided with the slit grating that produces space pattern, place camera above or below the display crystalline substance shields, and are used for catching and definite onlooker's face location; It is characterized in that grating is located on the displacement platform that carries out side-to-side movement control along with onlooker's head tracking; Displacement control platform control grating moves; By moving of translation stage, realize the adjustment of stop position.
2, the device of grating servo-actuated in the auto-stereoscopic display according to claim 1 is characterized in that the direction of motion of slit grating is opposite with the direction of motion of onlooker's head.
3, the device of grating servo-actuated in the auto-stereoscopic display according to claim 1 is characterized in that the stop position adjustment amount: Δ p=B
0* β, in the formula: Δ p is the grating amount of movement; B
0Be the stereo window width; β is an imaging projection ratio, gets about 800-1200.
4, the device of grating servo-actuated in the auto-stereoscopic display according to claim 1, the mobile platform that it is characterized in that grating is that the translation stage by step motor control moves and realizes, is provided with the movement transferring that the angular displacement of stepper motor is converted to the horizontal shift of translation stage by screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620074323.6U CN2911717Y (en) | 2006-06-29 | 2006-06-29 | Raster tracer in free 3-D displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620074323.6U CN2911717Y (en) | 2006-06-29 | 2006-06-29 | Raster tracer in free 3-D displaying device |
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| Publication Number | Publication Date |
|---|---|
| CN2911717Y true CN2911717Y (en) | 2007-06-13 |
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| CN200620074323.6U Expired - Fee Related CN2911717Y (en) | 2006-06-29 | 2006-06-29 | Raster tracer in free 3-D displaying device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102033324A (en) * | 2010-12-17 | 2011-04-27 | 深圳创维－Rgb电子有限公司 | Method and system for adjusting visual range of grating barrier type 3D display system |
| CN102136225A (en) * | 2010-01-22 | 2011-07-27 | 索尼公司 | Image display device having imaging device |
| CN102395039A (en) * | 2011-11-18 | 2012-03-28 | 南开大学 | Follow-up illuminating free stereo video image display |
| CN102447938A (en) * | 2011-12-05 | 2012-05-09 | 深圳市九洲电器有限公司 | Video effect enhancing method applied to naked-eye 3D video and apparatus thereof, and video effect enhancer |
| CN102510505A (en) * | 2011-09-30 | 2012-06-20 | 深圳超多维光电子有限公司 | Three-dimensional display device and control method thereof and controller |
| WO2012097503A1 (en) * | 2011-01-18 | 2012-07-26 | 青岛海信信芯科技有限公司 | Control method and apparatus for stereoscopic display |
| CN102798982A (en) * | 2012-08-31 | 2012-11-28 | 深圳超多维光电子有限公司 | Stereo display equipment and stereo display control method |
| CN103392342A (en) * | 2011-12-21 | 2013-11-13 | 青岛海信电器股份有限公司 | Method and device for adjusting viewing area, and device for displaying three-dimensional video signal |
| CN103595993A (en) * | 2013-11-08 | 2014-02-19 | 深圳市奥拓电子股份有限公司 | LED naked eye 3D display system based on intelligent recognition technology and working method thereof |
| CN103616767A (en) * | 2013-11-29 | 2014-03-05 | 南京大学 | Parallax illumination multi-view auto-stereoscopic display device and method |
| WO2015100924A1 (en) * | 2013-12-30 | 2015-07-09 | 京东方科技集团股份有限公司 | Stereoscopic display |
| CN105934699A (en) * | 2013-07-12 | 2016-09-07 | 法雷奥舒适驾驶助手公司 | Method and device for detecting the position of the face of a person, in particular of a motor vehicle driver, and display including such a device |
| CN105999700A (en) * | 2016-07-20 | 2016-10-12 | 深圳市龙祥卓越电子科技有限公司 | Three-dimensional entertainment device |
| CN108495116A (en) * | 2018-03-29 | 2018-09-04 | 京东方科技集团股份有限公司 | 3D display device and its control method, computer equipment |
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2006
- 2006-06-29 CN CN200620074323.6U patent/CN2911717Y/en not_active Expired - Fee Related
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| CN102136225B (en) * | 2010-01-22 | 2014-10-22 | 索尼公司 | Image display device having imaging device |
| CN102136225A (en) * | 2010-01-22 | 2011-07-27 | 索尼公司 | Image display device having imaging device |
| CN102033324A (en) * | 2010-12-17 | 2011-04-27 | 深圳创维－Rgb电子有限公司 | Method and system for adjusting visual range of grating barrier type 3D display system |
| WO2012097503A1 (en) * | 2011-01-18 | 2012-07-26 | 青岛海信信芯科技有限公司 | Control method and apparatus for stereoscopic display |
| US8879830B2 (en) | 2011-01-18 | 2014-11-04 | Hisense Hiview Tech Co., Ltd. | Control method and apparatus for stereoscopic display |
| CN102510505B (en) * | 2011-09-30 | 2015-04-15 | 深圳超多维光电子有限公司 | Three-dimensional display device and control method thereof and controller |
| CN102510505A (en) * | 2011-09-30 | 2012-06-20 | 深圳超多维光电子有限公司 | Three-dimensional display device and control method thereof and controller |
| CN102395039A (en) * | 2011-11-18 | 2012-03-28 | 南开大学 | Follow-up illuminating free stereo video image display |
| CN102395039B (en) * | 2011-11-18 | 2013-09-11 | 南开大学 | Follow-up illuminating free stereo video image display |
| CN102447938A (en) * | 2011-12-05 | 2012-05-09 | 深圳市九洲电器有限公司 | Video effect enhancing method applied to naked-eye 3D video and apparatus thereof, and video effect enhancer |
| CN103392342B (en) * | 2011-12-21 | 2016-02-10 | 青岛海信电器股份有限公司 | The method and apparatus of vision area adjustment, the equipment of three-dimensional video signal can be realized |
| US9838673B2 (en) | 2011-12-21 | 2017-12-05 | Hisense Electric Co., Ltd. | Method and apparatus for adjusting viewing area, and device capable of three-dimension displaying video signal |
| CN103392342A (en) * | 2011-12-21 | 2013-11-13 | 青岛海信电器股份有限公司 | Method and device for adjusting viewing area, and device for displaying three-dimensional video signal |
| CN102798982A (en) * | 2012-08-31 | 2012-11-28 | 深圳超多维光电子有限公司 | Stereo display equipment and stereo display control method |
| CN102798982B (en) * | 2012-08-31 | 2015-11-25 | 深圳超多维光电子有限公司 | A kind of stereoscopic display device and stereo display control method |
| US9609310B2 (en) | 2012-08-31 | 2017-03-28 | Superd Co. Ltd. | Apparatus and control method for stereoscopic display using viewer's position information |
| US9854230B2 (en) | 2012-08-31 | 2017-12-26 | Superd Co. Ltd. | Apparatus and control method for stereoscopic display |
| CN105934699A (en) * | 2013-07-12 | 2016-09-07 | 法雷奥舒适驾驶助手公司 | Method and device for detecting the position of the face of a person, in particular of a motor vehicle driver, and display including such a device |
| CN105934699B (en) * | 2013-07-12 | 2019-08-16 | 法雷奥舒适驾驶助手公司 | Detect the method, apparatus of the position of face, particularly motor vehicle driver face and the display with the device |
| CN103595993A (en) * | 2013-11-08 | 2014-02-19 | 深圳市奥拓电子股份有限公司 | LED naked eye 3D display system based on intelligent recognition technology and working method thereof |
| CN103616767A (en) * | 2013-11-29 | 2014-03-05 | 南京大学 | Parallax illumination multi-view auto-stereoscopic display device and method |
| WO2015100924A1 (en) * | 2013-12-30 | 2015-07-09 | 京东方科技集团股份有限公司 | Stereoscopic display |
| US9958688B2 (en) | 2013-12-30 | 2018-05-01 | Boe Technology Group Co., Ltd. | Stereoscopic display |
| CN105999700A (en) * | 2016-07-20 | 2016-10-12 | 深圳市龙祥卓越电子科技有限公司 | Three-dimensional entertainment device |
| CN108495116A (en) * | 2018-03-29 | 2018-09-04 | 京东方科技集团股份有限公司 | 3D display device and its control method, computer equipment |
| US10764568B2 (en) | 2018-03-29 | 2020-09-01 | Beijing Boe Optoelectronics Technology Co., Ltd. | 3D display device, method for controlling the same and computing device |
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