CN101594548A - Free stereo display method based on the DLP projection - Google Patents
Free stereo display method based on the DLP projection Download PDFInfo
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- CN101594548A CN101594548A CNA2009100541730A CN200910054173A CN101594548A CN 101594548 A CN101594548 A CN 101594548A CN A2009100541730 A CNA2009100541730 A CN A2009100541730A CN 200910054173 A CN200910054173 A CN 200910054173A CN 101594548 A CN101594548 A CN 101594548A
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Abstract
A kind of stereo display method based on the DLP projection may further comprise the steps: (1) obtains multi-angle photo or video image, the compound stereoscopic image file; (2) the DLP high definition projector is play real scene shooting or is made synthetic stereopsis file; (3) imaging and beam split show, obtain anaglyph, produce third dimension.Advantage is to adopt the DLP high definition projector to make display, and display frame is big, the definition height; The grid stroke number of original screen panel can mate fully with the size of pixel, and beam split is complete, and modelling effect is good.This method is suitable especially to be used for realizing obtaining true stereo sense image from the flat-panel screens bore hole.
Description
Technical field
The present invention relates to a kind of free stereo display method, belong to stereo-picture technique for displaying field based on the DLP projection.
Background technology
Vision is a kind of mode of people's awareness information.The human real three-dimensional world of reduction is human instinct, and thus, stereo display technique arises at the historic moment.Stereo display technique is watched the instrument angle from not additional assisting arranged, and can be divided into bore hole stereo display technique and non-bore hole stereo display technique.Free stereo shows it is a kind of in the bore hole stereo display technique, is a kind of stereo display technique that can realize that multi-viewpoint three-dimensional is observed.
Human eye can have stereoscopic vision, and its reason is a lot, and wherein most important factor is the existence of parallax.Parallax refers to the fine difference that two images that obtained exist when observing same things.The development of digital technology has driven the arrival of information age, the fields such as military affairs, exploration, remote sensing, remote control, medical science and artistic amusement that also driven simultaneously are for the pressing for of stereo display, and development of technologies provides possible also for the high accuracy 3 d display device.
Stereoscopic vision is the natural function of human eye.The human degree of depth of coming perceptual object by the nuance (parallax) of left eye and image that right eye is seen, thus identify the distance and the three-dimensional yardstick information of object.The different images that right and left eyes obtains is called left image and right image respectively, in Display Technique, if on screen, demonstrate left image and right image simultaneously, utilize certain device to make left eye can only see left image again, right eye can only be seen right image, so, just can be reduced into stereo-picture through the brain fusion.
A kind of LCD free stereo display method is arranged in the background technology, can realize the demonstration of stereoscopic photograph or video, the shortcoming of this technology is to adopt LCD as display, and picture displayed is too little, and in addition, grating and pixel can not be mated fully, cause beam split incomplete.
Summary of the invention
The objective of the invention is to propose a kind of free stereo display method based on the DLP projection.This method can obtain the stereo display effect of many viewpoints, large-screen, high three-dimensional degree by high definition projector.
For realizing above purpose, the present invention adopts following technical scheme.Described method comprises obtains multi-angle photo or video image, the compound stereoscopic image file; The DLP high definition projector is play real scene shooting or is made synthetic stereopsis file; Imaging and beam split show, obtain the right and left eyes parallax, produce three steps of third dimension, implement in the auto-stereo display system based on the DLP projection, to obtain the stereo display effect of many viewpoints, large-screen, high three-dimensional degree.This display system mainly comprises many cameras, guide rail, multiple degrees of freedom platform, DLP high definition projector, imaging plate, high transparent filler, high accuracy original screen panel.Camera is taken Same Scene by different angles, obtains multi-angle photo or video image.In computer with multi-angle photo or video image compound stereoscopic image file.DLP high definition projector with this display system is play-overed this document.Image projecting after this projector will synthesize is at the back side of imaging plate.The high accuracy original screen panel carries out beam split to the composograph that shows on the imaging plate, separates to obtain anaglyph, promptly left image and right image from composograph.Observer's right and left eyes is observed left image and right image respectively, thereby makes the observer produce the third dimension of scene.The projection scheme that adopts guarantees that the image that stereoscopic picture plane is big, third dimension is strong shows and can realize.
Now be described with reference to the accompanying drawings technical scheme of the present invention.A kind of free stereo display method based on the DLP projection is characterized in that, needs to implement the concrete operations step in the three-dimensional display system that contains camera, DLP high definition projector, imaging layer and original screen panel:
The first step is obtained multi-angle photo or video image, the compound stereoscopic image file
Obtain the multi-angle photo or the video image of scenery, compound stereoscopic image file in computer with camera;
The second step DLP high definition projector is play real scene shooting or is made synthetic stereopsis file
, play real scene shooting or make synthetic stereopsis file as display with the DLP high definition projector, composograph is projected to the back side of imaging plate;
The 3rd step imaging and beam split show, obtain anaglyph, produce third dimension
Imaging plate clearly shows composograph, and original screen panel carries out beam split to composograph, obtains anaglyph, and promptly left image and right image are refracted to observer's right and left eyes respectively, allow the observer experience the true stereo sense of composograph.
Technical scheme of the present invention is further characterized in that described multi-angle photo or video image are obtained by the 3DMAX three-dimensional software.
Technical scheme of the present invention is further characterized in that described multi-angle photo or video image are obtained by the software based on the OPENGL interactive game.
Compare with background technology, method of the present invention has the following advantages:
Traditional LCD free stereo display method adopts LCD display, and display frame is little; The grating of original screen panel can not mate fully with pixel, and beam split is incomplete, and modelling effect is poor.This method adopts the DLP high definition projector to make display, and display frame is big, the definition height; The radical of the grating of original screen panel can mate fully with the size of pixel, and beam split is complete, and modelling effect is good.
Description of drawings
Fig. 1 is based on the operational flowchart of the free stereo display method of DLP projection;
Fig. 2 is for the structural representation of the DLP auto-stereo display system of method execution of the present invention, among the figure, 1-DLP high definition projector, 2-imaging plate, 3-high grade of transparency filler, 4-original screen panel, the rotation of 5-five degree of freedom and translation stage, 6-guide rail, 7-base, 8-observer.
Embodiment
In above-mentioned summary of the invention, the concrete operations step of the free stereo display method based on the DLP projection of the present invention is fully disclosed, i.e. embodiment.For avoiding repetition, no longer attached herein embodiment.Now explain the operation principle of technical scheme of the present invention in conjunction with the accompanying drawings in detail.
Take static scene fully with the translation of separate unit camera, take movable scene with many cameras or video camera, thereby obtain multi-angle photo or video image.The multi-angle photo or the video image that obtain are imported computer according to numbering,, obtain the stereopsis file by synthesizing of composite software.Method of the present invention adopts DLP high definition projector 1 as display, guarantees that the imaging of large format can realize.The stereopsis file can directly be play for DLP high definition projector 1.DLP high definition projector 1 is projected to composograph at the back side of imaging plate 2.For making imaging plate 2 can clearly show composograph, need to adjust the distance between DLP high definition projector 1 and the imaging plate 2.For this reason, move five degree of freedom rotation and translation stage 5 along guide rail 6, DLP high definition projector 1 moves thereupon, till the composograph on the imaging plate 2 is clear.Come back rotation DLP high definition projector 1 then, till the trapezoidal distortion of the composograph on the imaging plate 2 disappears.Original screen panel 4 is positioned at the dead ahead of imaging plate 2, composograph on the grating pair imaging plate 2 of original screen panel 4 carries out beam split, composograph is resolved into anaglyph, be left image and right image, left side image and right image are refracted to observer 8 right and left eyes respectively, allow observer 8 experience the true stereo sense of composograph.Complete for the grating beam splitting that makes original screen panel 4, need to adjust the distance between original screen panel 4 and the imaging plate 2.Regulating this distance just in time drops on the focal plane of original screen panel 4 until imaging plate 2.The grid stroke that above-mentioned repeatedly adjustment process, the pixel size that projection can be formed accurately be adjusted to original screen panel counts up to full coupling, makes grating beam splitting complete, the distortion of stereo display quality and stereoscopic picture plane is improved and improves.
Method of the present invention is particularly suitable for being used for realizing obtaining true stereo sense image from the flat-panel screens bore hole.
Claims (3)
1, a kind of free stereo display method based on the DLP projection is characterized in that, needs to implement the concrete operations step in the three-dimensional display system that contains camera, DLP high definition projector, imaging layer and original screen panel:
The first step is obtained multi-angle photo or video image, the compound stereoscopic image file
Obtain the multi-angle photo or the video image of scenery, compound stereoscopic image file in computer with camera;
The second step DLP high definition projector is play real scene shooting or is made synthetic stereopsis file
, play real scene shooting or make synthetic stereopsis file as display with the DLP high definition projector, composograph is projected to the back side of imaging plate;
The 3rd step imaging and beam split show, obtain anaglyph, produce third dimension
Imaging plate clearly shows composograph, and original screen panel carries out beam split to composograph, obtains anaglyph, and promptly left image and right image are refracted to observer's right and left eyes respectively, allow the observer experience the true stereo sense of composograph.
2, free stereo display method according to claim 1 is characterized in that, described multi-angle photo or video image are obtained by the 3DMAX three-dimensional software.
3, free stereo display method according to claim 1 is characterized in that, described multi-angle photo or video image are obtained by the software based on the OPENGL interactive game.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100541730A CN101594548A (en) | 2009-06-30 | 2009-06-30 | Free stereo display method based on the DLP projection |
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| CNA2009100541730A CN101594548A (en) | 2009-06-30 | 2009-06-30 | Free stereo display method based on the DLP projection |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547316A (en) * | 2010-12-17 | 2012-07-04 | 英华达（南京）科技有限公司 | Portable electronic device with stereoscopic projection function and control method of portable electronic device |
| CN103246073A (en) * | 2013-05-22 | 2013-08-14 | 天津中天证照印刷有限公司 | Synthesis method for dynamic three-dimensional pictures |
| CN104837004A (en) * | 2015-05-08 | 2015-08-12 | 天脉聚源(北京)传媒科技有限公司 | Method and device for transmitting 3D (Three-Dimensional) data |
| CN107295327A (en) * | 2016-04-05 | 2017-10-24 | 富泰华工业（深圳）有限公司 | Light-field camera and its control method |
-
2009
- 2009-06-30 CN CNA2009100541730A patent/CN101594548A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547316A (en) * | 2010-12-17 | 2012-07-04 | 英华达（南京）科技有限公司 | Portable electronic device with stereoscopic projection function and control method of portable electronic device |
| CN103246073A (en) * | 2013-05-22 | 2013-08-14 | 天津中天证照印刷有限公司 | Synthesis method for dynamic three-dimensional pictures |
| CN103246073B (en) * | 2013-05-22 | 2015-06-24 | 天津中天证照印刷有限公司 | Synthesis method for dynamic three-dimensional pictures |
| CN104837004A (en) * | 2015-05-08 | 2015-08-12 | 天脉聚源(北京)传媒科技有限公司 | Method and device for transmitting 3D (Three-Dimensional) data |
| CN107295327A (en) * | 2016-04-05 | 2017-10-24 | 富泰华工业（深圳）有限公司 | Light-field camera and its control method |
| CN107295327B (en) * | 2016-04-05 | 2019-05-10 | 富泰华工业（深圳）有限公司 | Light-field camera and its control method |
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Open date: 20091202 |