CN1598690A - Screen division stereoscopic photography projection instrument - Google Patents
Screen division stereoscopic photography projection instrument Download PDFInfo
- Publication number
- CN1598690A CN1598690A CN03157383.5A CN03157383A CN1598690A CN 1598690 A CN1598690 A CN 1598690A CN 03157383 A CN03157383 A CN 03157383A CN 1598690 A CN1598690 A CN 1598690A
- Authority
- CN
- China
- Prior art keywords
- image
- screen
- windowing
- projector
- adapter
- 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.)
- Granted
Links
Images
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
The invention discloses a windowing tridimensional image technology plan. It can change planar cinetoscope (1) and projector (2) to tridimensional cinetoscope and projector by windowing adapter, and achieve record and display tridimensional image by windowing style image. The windowing tridimensional projector can play tridimensional images with high definition and big size, glasses is not necessary, the signal bandwidth is low, has no flicker, but very high presence feeling, the tridimensional TV set achieved by windowing technology is suitable to family watching and advertisement displaying, the windowing tridimensional digital camera, tridimensional video have superiorities of high quality and low cost, it is suitable to gain ground and develop tridimensional photography.
Description
The invention belongs to optics display technique field, the structure that relates to a kind of stereoscopic photograph, binocular projector is formed.
The three-dimensional video-frequency image of wide visual angle, high definition has high telepresenc, is the developing direction of display technique after the HD digital video, and does not need large format stereopsis that wearing spectacles freely the watches target pursued of people especially.From existing technical scheme, can all be near the display device of this target for specific purpose, the specific installation that designs as emulation, military affairs, large-scale amusement, the universal high telepresenc three-dimensional display system of low price be we can say also and are not occurred.
The stereoscopic photograph equipment of practicability has professional equipments such as many lens stereos camera, many lens stereo digital cameras at present, and cost is than higher, and high performance professional plane camera is not particularly also effectively used in personage's photography in stereoscopic photograph.The stereoscopic display device of practicability comprises the three-dimensional film machine, the multimedia binocular projector that adopt polarization technology, has higher telepresenc, needs two players, wears polarising glass and watches; The liquid crystal light valve spectacle CRT monitor of employing time-sharing stereo technology or televisor, liquid crystal shutter polarising glass formula CRT monitor, all there is the limitation that needs very high refresh rate, otherwise tangible screen flicker appears, and along with the rise of LCD, PDP display, the market share of CRT reduces gradually, divides the range of application of up-to-date style stereo technology more and more littler; Adopt LCD, the PDP display of batten formula grating stereo technology, watch degree of freedom minimum, even be equipped with head tracking equipment, generally also only watch for a people, freely watch if realize many people, requirement has high lateral resolution, and the display of mega pixel level does not obviously reach request for utilization far away at present; The stereo display of adopting many camera lenses optical grating projection technology to realize can freely be watched, but needs many cover projector.
On the whole, though the flat digital display technique is with rapid changepl. never-ending changes and improvements, the expectation that exceeds people soon of speed of development, the practicability progress of stereo display technique is still little, although holographic three-dimensional display is placed high hopes, the breakthrough of its gordian technique is still not within the foreseeable future.Be based on the plane display technique, the preferred unit of realizing the Stereoscopic Video Presentation of wide visual angle, high definition should be the multimedia overhead projector instrument.
The objective of the invention is to design a kind of windowing type stereo technology scheme, utilize the photography of windowing adapter and plane, projector, realize the record and the demonstration of stereopsis.Because the windowing type stereometric camera has adopted identical technical scheme with binocular projector, is a reciprocal two-phonon process, system architecture is basic identical, therefore is described simultaneously in the present invention.
The structure of windowing type stereometric camera comprises: photographic apparatus (1), windowing adapter (3), image correction unit, split screen format-pattern.
The structure of windowing type binocular projector comprises: projector (2), windowing adapter (3), projection screen (4), image correction unit, split screen format-pattern.
Photographic apparatus (1) is meant the equipment that comes document image by lens imaging, and typical photographic apparatus comprises film camera, digital camera, video camera, video camera etc.
Projector (2) is meant the equipment that comes display image by lens imaging, typical projector comprises film slide projector, film projector, digital multimedia projector etc., the multimedia overhead projector instrument of practicability comprises CRT projector, LCD projector, DLP projector at present, and its color display unit is made of three monochromatic display units of RGB mostly.Among the present invention, after projector (2) made up with windowing adapter (3), the projection visual field reduced to some extent, should adopt short focal length projection lens as far as possible.
Windowing adapter (3) mainly is made of dichroic reflector (5) and potential difference catoptron (6), its role is to, and each image block of split screen format-pattern is projected on the screen (4) from the incident point with certain level potential difference, shows stereo-picture; To have perhaps that the mode with piece is aligned on the recording medium record split screen format-pattern after the visual point image imaging of horizontal position difference.Windowing adapter (3) can have multiple mode to constitute, and also can increase optics amplifier elements such as cylindrical mirror, spherical mirror and improve the scope of application, in the 2 panes projection pattern, can adopt the very simple polarization shear mirror of a kind of structure to realize stereo display.When the dichroic reflector (5) of windowing adapter (3) was positioned near the focus of projection lens, the efficiency of light energy utilization was 50～65%, suitably strengthened the distance of dichroic reflector (5) and projection lens, helped to improve screen intensity.In addition, the dispersion phenomenon that adapter produces also needs to take effective method of controlling, and the position with software correction redgreenblue passage pixel can suppress chromatic dispersion to a certain extent.
Projection screen (4) comprises common projection screen, metal shadowing's screen, directivity beam split projection screen etc.Guarantor's bias of metal shadowing's screen is good, is mainly used in wearing polarising glass when watching in the binocular projector of 2 panes mode; The material that directivity beam split projection screen can adopt grating screen and three vertical plane radiation shields etc. to have self-collimation characteristic constitutes, and is applied in the binocular projector of many split screen modes, can freely watch stereo-picture, need not wear anaglyph spectacles.The most frequently used directivity beam split screen is the grating screen, and wherein the monochromatic light grid screen is applied in the orthographic projection system, and the double grating screen is applied in the back-projection system.Because the spacing of the potential difference catoptron (6) of adapter causes the incident point spacing excessive often greater than people's eye distance, can adopt the double-sided screen of two blocks of gratings (7) composition that pitch is identical, thickness is different to allocate.
The deviation that image correction unit utilizes standard picture and correction software to come correction image to occur in record or procedure for displaying.These deviations mainly come from the geometrical aberration of imaging lens, the reflecting element position deviation of windowing adapter, the optical path difference of each path channels etc.Compare with stereoscopic camera, the combination of imaging lens and windowing adapter is equivalent to a plurality of independently image-generating units of stereoscopic camera, therefore can proofread and correct with patented claim 02104319.1 disclosed method.Projection is the optics inverse process of photography, can compare with the standard grid that carries on the screen with standard split screen image projection to screen, sets up the mapping relations between projected image and the standard picture, and utilizes mapping relations correction split screen form stereo-picture.
The split screen format-pattern is a technological core of the present invention.The split screen format-pattern is meant two width of cloth disparity maps or several parallax sequence chart is arranged in a width of cloth plane picture in complete image block mode, is kept on the image recording media, perhaps shows on image-display units.In stereometric camera, image recording media is meant various photographic apparatuss (1); In binocular projector, image-display units is meant various projector (2).The sharpest edges of windowing type stereo technology are, can utilize single plane picture equipment to realize stereo recording and demonstration, and are accompanied by the update of plane picture equipment and are obtaining the upgrading development aspect wide visual angle, the high definition.Split screen mode comprises symmetry split screen and asymmetry split screen.
The principle of symmetry split screen: parallax sequence image piece big or small identical, divide equally image recording (or demonstration) medium.Typical split screen mode has 2 panes, four split screens, six split screens, image definition (1024 * 768) with present main flow display device is an example, can realize that sharpness is 1024 * 384 * 2,512 * 768 * 2,512 * 384 * 4,512 * 256 * 6 stereo display.Obviously, the problem that too high split screen number can bring sharpness to reduce, particularly many split screens of only realizing on height or direction of width will cause sharpness seriously to descend, thereby not have practical value.
In stereo display, when in a width of cloth anaglyph is at least during a weak point, showing with the desired enough resolution of vision, resolution that can another width of cloth anaglyph of sizable reduction, up to half, and can not cause the decline of sharpness subjective impression, and the decline of depth preception ability.The characteristic of utilizing this asymmetric spatial resolution to require under the constant situation of equipment sharpness, image signal transmission bandwidth, can adopt the asymmetry split screen mode to improve the sharpness of stereo-picture.The principle of asymmetry split screen: the varying in size of parallax sequence image piece, the resolution of little image block is not less than half of big image block.Typical split screen mode has 2 panes, 3 panes, it still is 1024 * 768 equipment sharpness, can realize (682 * 768+342 * 768), (1024 * 512+1024 * 256), (682 * 768+342 * 384 * 2), (1024 * 512+512 * 256 * 2) four kinds of split screen modes, sharpness is as the criterion with the bulk image.Needing to add lens (or post mirror) and catoptron in the part path channels of asymmetry windowing adapter increases image magnification ratio and compensates light path, makes little image amplify back and the three-dimensional coupling of big image, and clearly is imaged on the screen (4).
Three-dimensional program film source is the difficult point of stereo display marketing always, except adopting stereoscopic shooting and three-dimensional design, has two kinds of technology can increase the source of three-dimensional program.First 2D/3D converter technique, the people not only can be from binocular parallax and converge like the spokes of a wheel at the hub acquisition depth information, also can obtain depth information according to motion, shade, contrast, eyeball regulatory function, image defocus, size, situation such as overlapping with eyes, we carry out valuation to the depth information of each parameter such as the amount of exercise of common 2D input picture, contrast, bright acutance and handle, distance according to resulting depth information calculations image each several part concerns then, and becomes to have the stereo-picture of parallax according to its depth information issuing; It two is to utilize the image interpolation treatment technology, generates its intermediate image according to the right and left eyes anaglyph, forms many split screens stereo-picture.
Below in conjunction with structure that illustrates windowing type stereoprojection, photographic apparatus and composing method.
Fig. 1 is the synoptic diagram of symmetry split screen format-pattern, comprises 2 panes, four split screens, six split screens.Fig. 1 a is a 2 panes form up and down, is fit to the polarization type wide screen and shows or record; Fig. 1 b is a left and right sides 2 panes form, can become wide screen with cylindrical mirror horizontal spreading when the projection, and also available 90 ° of biasing mirrors directly form widescreen and show or record; Fig. 1 c is four split screen forms, is fit to the demonstration or the record of four-barrel stereo-picture; Fig. 1 d is six split screen forms, is fit to the demonstration or the record of six lens stereo images.A, B, C, D, E, F are the sequence number of anaglyph.
Fig. 2 is the synoptic diagram of asymmetry split screen format-pattern, comprises 2 panes, 3 panes.Fig. 2 a is a left and right sides 2 panes, is fit to polarization type stereo display, needs with optical element B figure to be launched on Width; Fig. 2 b is a left and right sides 3 panes, is fit to the stereo display of grating screen, needs with optical element A figure and C figure to be amplified; Fig. 2 c is a 2 panes up and down, is fit to the stereo display of polarization type wide screen, needs with optical element B figure is launched on short transverse; Fig. 2 d is a 3 panes up and down, is fit to the stereo display of grating screen, needs with optical element A figure and C figure amplification.
Fig. 3 is the structural representation of windowing adapter (3), and windowing adapter mainly is made of dichroic reflector (5) and potential difference catoptron (6).The structure and the effect of adapter are described with projection process below.
Dichroic reflector (5) has the square catoptron of certain difference to be spliced by the polylith reflection angle, and one group of equally spaced potential difference catoptron (6) is arranged in the horizontal direction, and reflection angle is corresponding one by one with each reflex block of dichroic reflector (5).The split screen format-pattern is through the projection lens imaging, tackled by dichroic reflector (5) at image space, each reflex block of dichroic reflector (5) reflexes to corresponding potential difference catoptron (6) with the main spectrum energy of respective image piece in the split screen format-pattern, project then on the screen (4), have parallax relation between each image block, superimposedly on screen (4), can form stereo-picture.Obviously, potential difference catoptron (6) also contains the spectrum component of other image block except that the corresponding image block of reflection, can use the light shield filtering in position.Different split screen format-pattern needs dissimilar windowing adapters (3), and the adapter that can finish this split screen function can also adopt the design of other type.The windowing adapter (3) of photographic apparatus (1) is identical with projector (2), and imaging process is the inverse process of projection.
Fig. 4 is the structural representation of polarization windowing adapter (3).Polarization type 2 panes adapter can adopt simpler structure, and the reflective adapter shown in Fig. 4 a is directly projected light beam to be reflexed on the screen (4) with dichroic reflector (5), places two mutually orthogonal polaroids (8) at the catoptron rear.The Ray Of Light of transmission-type adapter shown in Fig. 4 b directly projects screen (4) after by polaroid (8), and another bundle light again through a polaroid (8), arrives screen (4) by a deviation prism (9) then.
Fig. 5 is the structural representation of windowing type stereometric camera, is made up of photographic apparatus (1) and windowing adapter (3).By windowing adapter (3), commonness photograph instrument (1) can write down the stereo-picture of split screen form.
Fig. 6 is the structural representation of windowing type binocular projector, is made up of projector (2), windowing adapter (3) and screen (4).By windowing adapter (3), general projectors (2) can project the split screen format-pattern on the screen (4) in the mode that is equivalent to many camera lenses, forms stereo-picture.Binocular projector mainly contains two kinds of array modes: one, and projector projects the 2 panes format-pattern on the metal screen by the polarization type windowing adapter, and the viewers wear polarising glass is watched stereo-picture; Its two, projector projects many split screens format-pattern on the grating screen by many windowing adapters, spectators can freely watch stereo-picture.
Fig. 7 is the horizontal cross-section synoptic diagram that the monochromatic light grid are just being thrown screen, is made up of a column mirror grating plate (7) and a diffusing surface (10), and diffusing surface (10) is positioned on the focusing surface of original screen panel (7).Original screen panel (7) has self-collimation characteristic in the horizontal direction, has diffusive property in vertical direction, when the set of diagrams picture when different horizontal parallax points projects grating screen (4), eyes are because self-collimation characteristic can seen stereo-picture in certain zone.Because the acting in conjunction of following three factors, eyes can see that the effective coverage of stereo-picture is actually very large, one, and anaglyph quantity is more for a long time; Its two, have diffusive property on the vertical direction; Its three, diffusing surface (10) diffusion effect in the horizontal direction makes contiguous cylindrical mirror produce " sidelobe " effect.If the incident point spacing of anaglyph is excessive, human eye can't be seen complete stereo-picture on monochromatic light grid screen curtain (4), at this moment need to use the double grating rear projection screen.
Fig. 8 is the horizontal cross-section synoptic diagram of double grating rear projection screen, is made up of two blocks of column mirror grating plates (7) that pitch is identical, thickness is different and middle transmittance scattering surface (11).Two original screen panels (7) have different design focal lengths, scattering surface (11) is on the common focusing surface of both sides, glimmer screen (7) is in projector (2) one sides, thick original screen panel (7) is in beholder one side, such layout can be reproduced out in observation side with less parallactic angle with the stereo-picture that projects on the screen (4) with big parallactic angle, and suitable human eye is watched.
Utilize windowing adapter plane projection equipment to be become the binocular projector of high-resolution, large format, wearing spectacles is not watched, and low, the flicker free of signal bandwidth has high telepresenc, the back projection type stereotelevision that utilizes the split screen technology to realize, suitable family views and admires and advertisement is showed.Utilize windowing adapter digital camera, video camera can also be become many lens stereos camera, stereo camera, effectively promoted stereographic development and universal.
Provide three embodiment below in conjunction with diagram.
Case study on implementation one: as shown in Figure 5, a digital camera (1) is formed the four-barrel stereoscopic camera with one four windowing adapter (3).At first take standard picture with the windowing type stereoscopic camera, set up the correction maps relation according to the split screen format-pattern of standard picture and shooting, be used for revising the error that produces when this camera is taken the split screen format-pattern, and from the split screen format-pattern, isolate the parallax sequence image.Require digital camera (1) to have the above resolution of 4,000,000 pixels, if the camera sharpness is 2560 * 2048, the view picture split screen format-pattern of record, the anaglyph that is equivalent to four 1280 * 1024 sizes, if adopt the 3 D grating of 40 line/inches that anaglyph is made into stereoscopic photograph, maximum breadth can reach 32 * 24 inches.
If obtain bigger, the stereoscopic photograph more clearly of breadth, the digital camera or 120 film cameras of ten million pixel scale can be adopted, and the video image of high-resolution will be photographed, also need use kinematograph.
Case study on implementation two: as shown in Figure 6, a multimedia overhead projector instrument (2), four windowing adapters (3) and a grating screen (4) can be formed a multimedia grating stereo projector.The employing sharpness is 1024 * 768 LCD projector (2) and double grating screen (4) in this example, and four width of cloth parallax sequence images after the correction are arranged in four split screen format-patterns by symmetric mode, and the sharpness of single width anaglyph is 512 * 384.Through windowing adapter (3), anaglyph projects the back side of grating screen (4) from the potential difference catoptron of correspondence, and spectators do not wear anaglyph spectacles in the place ahead of grating screen (4) can see stereopsis.
Realize the stereo display of high definition, need use the film projector.Divide screen image can adopt positive negative film output instrument to record on the cinefilm of 35mm or 70mm, resolution is up to 8192 * 5462, and the resolution of single width anaglyph reaches 4096 * 2731.Two four split screen binocular projectors can form eight lens stereo projector, provide with great visual angle, high definition, watch the high stereopsis of degree of freedom.
Case study on implementation three: as shown in Figure 6, a multimedia overhead projector instrument (2), polarization windowing adapter (3), metal shadowing's screen (4) and polarising glass can be formed multimedia polarization binocular projector.The employing sharpness is 1024 * 768 LCD projector in this example, with 90 ° of the earlier clockwise deflections of corrected anaglyph, divide screen image about being arranged in by symmetric mode then, behind the projecting beam process polarization windowing adapter (3), use the bigger biasing catoptron of area with 90 ° of the counterclockwise deflections of image again, project on the screen (4), the sharpness of stereo-picture can reach 768 * 512, and the viewers wear polarising glass can be seen stereo-picture.
Essence of the present invention is, pass through windowing adapter, the separate unit photographic apparatus becomes multiple devices, to store with the split screen form from the stereo-picture of each horizontal parallax point record, perhaps pass through windowing adapter, the separate unit projector projects the stereo-picture of split screen form on the screen from each horizontal parallax point, forms stereo-picture.The present invention has only chosen three case study on implementation and has come with reference to explanation, the professional person can be easy to write out a lot of relevant case study on implementation according to the solution of this description, for example, adapter can also adopt the light-splitting method of branch amplitude, utilize the different level crossing of transmissivity to realize, directivity beam split screen also can adopt diverse structure to realize, putting in order of the image block of split screen format-pattern can have different combination or the like.Intention of the present invention will comprise all embodiment that meet with claims.
Claims (11)
1. stereoscopic photograph or binocular projector is characterized in that,
1), stereometric camera is made up of photographic apparatus (1) and windowing adapter (3), and by windowing adapter (3), plane photographic apparatus (1) can write down the stereo-picture of split screen form, revises with image correction unit for the image deviations that occurs in the photographic process, perhaps
2), binocular projector is made up of projector (2), windowing adapter (3) and projection screen (4), by windowing adapter (3), plane projector (2) can play the stereo-picture of split screen form, revises with image correction unit for the image deviations that occurs in the projection process.
2. instrument as claimed in claim 1, its feature are that also plane photographic apparatus (1) is digital camera or 120 film cameras, form the four-barrel stereoscopic camera with four windowing adapters (3).
3. instrument as claimed in claim 1, its feature also is, multimedia overhead projector instrument (2), four windowing adapters (3) and grating screen (4) are formed multimedia grating stereo projector, play four split screen format-patterns, and spectators do not wear anaglyph spectacles can see stereopsis.
4. instrument as claimed in claim 3, its feature also is, stereoscopic screen (4) is the double grating screen that adopts two blocks of column mirror grating plates (7) that pitch is identical, thickness is different and transmittance scattering surface (11) to constitute, anaglyph projects on the screen (4) from the back side, and spectators watch stereopsis in the place ahead of screen (4).
5. instrument as claimed in claim 1, its feature are that also multimedia overhead projector instrument (2), polarization windowing adapter (3), metal shadowing's screen (4) and polarising glass are formed multimedia polarization binocular projector, and the viewers wear polarising glass is watched stereo-picture.
6. instrument as claimed in claim 5, its feature also is, 90 ° of anaglyph elder generation deflections, divide screen image about being arranged in by symmetric mode then, behind the projecting beam process polarization windowing adapter (3), use the bigger biasing catoptron of area with 90 ° of image reversal deflections again, project screen (4).7. instrument as claimed in claim 1, its feature also is, windowing adapter (3) is made of dichroic reflector (5) and potential difference catoptron (6), dichroic reflector (5) has the square catoptron of certain difference to be spliced by the polylith reflection angle, potential difference catoptron (6) is one group and equidistantly arranges in the horizontal direction, each reflex block of reflection angle and dichroic reflector (5) is catoptron one to one, the correspondence image piece of split screen format-pattern can be reflexed on the screen (4).
8. a split screen format-pattern is used for writing down or showing stereo-picture, it is characterized in that this split screen format-pattern is a width of cloth plane picture that is arranged in complete image block mode by two width of cloth disparity maps or several parallax sequence chart.
9. image as claimed in claim 8, its feature also be, adopts symmetry split screen principle, and parallax sequence image piece big or small identical divided equally image recording or display medium.
10. image as claimed in claim 9, its feature also are, adopt left and right sides 2 panes form, are deflected into widescreen with 90 ° of biasing mirrors then and show stereo-picture, perhaps adopt four split screen forms, show or the record stereo-picture.
11. image as claimed in claim 8, its feature also be, adopts asymmetry split screen principle, the varying in size of parallax sequence image piece, and the resolution of little image block is not less than half of big image block.
12. image as claimed in claim 11, its feature also are, adopt 2 panes form up and down, with optical element little image block are launched on short transverse, perhaps adopt 3 panes form up and down, with optical element two little image blocks are amplified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031573835A CN100454140C (en) | 2003-09-19 | 2003-09-19 | Screen division stereoscopic photography projection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031573835A CN100454140C (en) | 2003-09-19 | 2003-09-19 | Screen division stereoscopic photography projection instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598690A true CN1598690A (en) | 2005-03-23 |
| CN100454140C CN100454140C (en) | 2009-01-21 |
Family
ID=34660283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031573835A Expired - Fee Related CN100454140C (en) | 2003-09-19 | 2003-09-19 | Screen division stereoscopic photography projection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100454140C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012628A (en) * | 2010-10-15 | 2011-04-13 | 杭州先临三维科技股份有限公司 | Single-machine polarizing stereo film imaging system and imaging method |
| CN102063008A (en) * | 2010-11-03 | 2011-05-18 | 中航华东光电有限公司 | Multi-viewport free three-dimensional projection system |
| CN102323713A (en) * | 2010-11-09 | 2012-01-18 | 浙江工业大学 | Portable 360-DEG circular-screen 3D theatre system |
| CN103150757A (en) * | 2012-02-22 | 2013-06-12 | 林善红 | Digital city three dimensional (3D) passive stereo display system and manufacture method thereof |
| CN103890638A (en) * | 2011-10-20 | 2014-06-25 | 图象公司 | Distortion compensation for image projection |
| CN104155765A (en) * | 2013-05-15 | 2014-11-19 | 北京三星通信技术研究有限公司 | Method and equipment for correcting three-dimensional image in tiled integral imaging display |
| CN107357127A (en) * | 2017-08-17 | 2017-11-17 | 深圳市乐视环球科技有限公司 | A kind of stereoprojection equipment of adjust automatically and bearing calibration |
| US9961316B2 (en) | 2011-08-16 | 2018-05-01 | Imax Theatres International Limited | Hybrid image decomposition and projection |
| CN109459862A (en) * | 2017-09-06 | 2019-03-12 | 石庆俊 | The designing and manufacturing method of big visual field 3DVR photo |
| US10326968B2 (en) | 2011-10-20 | 2019-06-18 | Imax Corporation | Invisible or low perceptibility of image alignment in dual projection systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082430U (en) * | 1990-06-30 | 1991-08-07 | 陈瑞程 | Stereoscopic photographic lens |
-
2003
- 2003-09-19 CN CNB031573835A patent/CN100454140C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012628A (en) * | 2010-10-15 | 2011-04-13 | 杭州先临三维科技股份有限公司 | Single-machine polarizing stereo film imaging system and imaging method |
| CN102012628B (en) * | 2010-10-15 | 2012-11-21 | 杭州先临三维科技股份有限公司 | Single-machine polarizing stereo film imaging system and imaging method |
| CN102063008A (en) * | 2010-11-03 | 2011-05-18 | 中航华东光电有限公司 | Multi-viewport free three-dimensional projection system |
| CN102323713A (en) * | 2010-11-09 | 2012-01-18 | 浙江工业大学 | Portable 360-DEG circular-screen 3D theatre system |
| US9961316B2 (en) | 2011-08-16 | 2018-05-01 | Imax Theatres International Limited | Hybrid image decomposition and projection |
| CN103890638A (en) * | 2011-10-20 | 2014-06-25 | 图象公司 | Distortion compensation for image projection |
| US9503711B2 (en) | 2011-10-20 | 2016-11-22 | Imax Corporation | Reducing angular spread in digital image projection |
| US10326968B2 (en) | 2011-10-20 | 2019-06-18 | Imax Corporation | Invisible or low perceptibility of image alignment in dual projection systems |
| US10073328B2 (en) | 2011-10-20 | 2018-09-11 | Imax Corporation | Reducing angular spread in digital image projection |
| CN103890638B (en) * | 2011-10-20 | 2019-05-03 | 图象公司 | Distortion compensation for image projection |
| CN103150757A (en) * | 2012-02-22 | 2013-06-12 | 林善红 | Digital city three dimensional (3D) passive stereo display system and manufacture method thereof |
| CN104155765A (en) * | 2013-05-15 | 2014-11-19 | 北京三星通信技术研究有限公司 | Method and equipment for correcting three-dimensional image in tiled integral imaging display |
| US9977981B2 (en) | 2013-05-15 | 2018-05-22 | Samsung Electronics Co., Ltd. | Method and apparatus for calibrating a three-dimensional (3D) image in a tiled display |
| CN104155765B (en) * | 2013-05-15 | 2019-09-13 | 北京三星通信技术研究有限公司 | The method and apparatus of revision for 3-D image in spliced integration imaging display |
| CN107357127A (en) * | 2017-08-17 | 2017-11-17 | 深圳市乐视环球科技有限公司 | A kind of stereoprojection equipment of adjust automatically and bearing calibration |
| CN107357127B (en) * | 2017-08-17 | 2021-11-16 | 深圳市乐视环球科技有限公司 | Automatic-adjustment stereoscopic projection equipment and correction method |
| CN109459862A (en) * | 2017-09-06 | 2019-03-12 | 石庆俊 | The designing and manufacturing method of big visual field 3DVR photo |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100454140C (en) | 2009-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7002749B2 (en) | Modular integral magnifier | |
| US8264772B2 (en) | Depth and lateral size control of three-dimensional images in projection integral imaging | |
| US3959580A (en) | Directly viewable stereoscopic projection system | |
| US4945407A (en) | High definition, three-dimensional television | |
| CN108803053B (en) | Three-dimensional light field display system | |
| JP2009017207A (en) | Stereoscopic television system and stereoscopic television receiver | |
| JPH0627923B2 (en) | Device for obtaining four-dimensional images | |
| JP2000510607A (en) | Automatic three-dimensional image forming apparatus and system incorporating the same | |
| CN102282855A (en) | Three-dimensional video image pick-up and display system | |
| EP0037820A1 (en) | Method and apparatus for producing apparent three-dimensional images. | |
| WO2019000948A1 (en) | Three-dimensional stereoscopic display panel, and display method and display apparatus therefor | |
| US6055100A (en) | Doublet based large aperture free space imaging system | |
| JP4421673B2 (en) | 3D image display device | |
| CN1231071C (en) | Stereoscopic system | |
| CN1598690A (en) | Screen division stereoscopic photography projection instrument | |
| EP1083757A2 (en) | Stereoscopic image display apparatus | |
| US20060018016A1 (en) | Device for viewing stereoscopic images on a display | |
| KR20210049594A (en) | Three-dimensional image projection apparatus | |
| US4208086A (en) | Three-dimensional projection system | |
| JP2007271668A (en) | Stereoscopic video display apparatus | |
| JP2963001B2 (en) | Virtual image stereoscopic display | |
| Arai | Three-dimensional television system based on spatial imaging method using integral photography | |
| JP4492208B2 (en) | 3D image playback device | |
| JP3056581B2 (en) | Projection type stereoscopic display | |
| JP3080777B2 (en) | Projection type stereoscopic display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20110919 |