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公开(公告)号：EP0118449B1
公开(公告)日：1987-11-11
申请号：EP83901092.3
申请日：1983-03-30
IPC分类号： G03B35/00
CPC分类号： G03B35/00
摘要： Apparatus such as a camera for producing autostereoscopic images comprises imaging means, such as one or more lenses (60, 61, 68) arranged to capture rays from a range of perspectives of an object field (58) and recording means in an image field such as lenticular film (69), for recording composite stereoscopic information from the object field. Preferably the imaging means includes one or more retroreflectors (62, 63) adapted to return rays substantially along their incident paths. The lenticular film used may be adapted for fast processing.
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公开(公告)号：EP1029253A1
公开(公告)日：2000-08-23
申请号：EP98952854.2
申请日：1998-11-04
CPC分类号： G03C9/02 , G02B27/2214
摘要： A method and apparatus for the production of an autostereoscopic and/or animated image on a lenticular screen is provided. In order to achieve the required accuracy for a good lenticular image, a detector is used to measure the location of an edge of the image bearing substrate and image data is positioned relative to this edge. The substrate may be a conventional print medium for subsequent attachment to the lenticular screen or the screen itself. As an alternative to the edge of the substrate, the lens elements of the screen can provide the frame of reference for accurate registration of the image. This is achieved by viewing a defined reference grid through the lenticular screen and converting the observed Moiré pattern into data suitable for positioning the elements of the required image, thereby accommodating dimensional variations within the screen.
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公开(公告)号：EP0687366B1
公开(公告)日：2000-01-26
申请号：EP94908408.1
申请日：1994-03-02
CPC分类号： G02B27/0093 , G02B27/2214 , H04N13/194 , H04N13/204 , H04N13/289 , H04N13/305 , H04N13/31 , H04N13/32 , H04N13/324 , H04N13/327 , H04N13/334 , H04N13/337 , H04N13/341 , H04N13/346 , H04N13/363 , H04N13/373 , H04N13/376 , H04N13/378 , H04N13/38 , H04N13/398
摘要： PCT No. PCT/GB94/00405 Sec. 371 Date Aug. 29, 1995 Sec. 102(e) Date Aug. 29, 1995 PCT Filed Mar. 2, 1994 PCT Pub. No. WO92/20875 PCT Pub. Date Sep. 15, 1994Apparatus and method for the alignment of images in which, typically, two perspective views are provided. The observer's head location is detected and each of the views is presented to the respectively correct eye to provide a stereoscopic image. A retro-reflective marker worn by the observer removes the need for the observer to wear special viewing devices, whilst providing an infrared imaging system with a way to locate the observer's head. Image content may be driven by the observer's viewpoint. The two perspectives may be presented simultaneously using conventional display elements. A tapered lenticular structure provides a way to adapt to changes in the observer's distance from the display. Alternatively, each perspective image may be rapidly sequenced, either as two complete single images, or a sequence of suitably arranged compositions of the two. The infrared source used in the head tracking apparatus is modulated to aid image processing. The modulated source may also be used to synchronize a stereoscopic viewing device, switching views on a field sequential basis. Inter alia, the invention has applications in minimally invasive surgery, remote handling, virtual reality, teleconferencing and computer aided design and visualization.
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公开(公告)号：EP0819359B1
公开(公告)日：1999-02-17
申请号：EP96908293.2
申请日：1996-04-03
IPC分类号： H04N13/00
CPC分类号： H04N13/398 , H04N13/15 , H04N13/161 , H04N13/189 , H04N13/194 , H04N13/211 , H04N13/225 , H04N13/229 , H04N13/239 , H04N13/296 , H04N13/305 , H04N13/31 , H04N13/324 , H04N13/334 , H04N13/337 , H04N13/341 , H04N13/346 , H04N13/363 , H04N13/366 , H04N19/597
摘要： Apparatus and method for image enhancement in which an autostereoscopic image, comprising a different perspective view of an object field for each eye of an observer is, typically provided. The optical cross-talk, which is often a feature of autostereoscopic images, is suppressed when images are displayed, by preconditioning of the image intended for each eye. Supplementary image data is produced by mixing the different perspective image data and this is applied to the primary data. By inversion of a cross-talk matrix, two or more different perspective channels can be preconditioned to cancel the effects of such cross-talk, providing clear images for each eye without the unwanted interference from other views. The viewer's location with respect to the display device can be used to modify the characteristics of both the display and the level of cross-talk correction. A camera or endoscope for providing stereoscopic images can also suffer from optical cross-talk. The imagery captured by such a system may be improved by applying the same principles as are applied to the display process.
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公开(公告)号：EP0556217A1
公开(公告)日：1993-08-25
申请号：EP91918677.0
申请日：1991-11-01
CPC分类号： G03B35/00 , H04N13/161 , H04N13/305 , H04N13/307
摘要： PCT No. PCT/GB91/01920 Sec. 371 Date May 5, 1993 Sec. 102(e) Date May 5, 1993 PCT Filed Nov. 1, 1991 PCT Pub. No. WO92/08164 PCT Pub. Date May 14, 1992.An image array comprising a cellular structure, typically comprising three-dimensional image data and apparatus for forming such an array, typically on photographic film. Each cell within the array comprises an image component and a reference mark formed by the same element of a microlens array. By use of the reference marks, the film may be separated from the lens array and image processed with improved flexibility and precision.
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公开(公告)号：EP0211596A3
公开(公告)日：1988-08-31
申请号：EP86305809
申请日：1986-07-29
CPC分类号： H04N9/3129 , H04N3/10 , H04N13/337
摘要： Apparatus for producing high definition projected video images comprising light-emitting means providing in use at least one collimated beam of light, acousto-optic means for modulating said at least one beam of light, means for scanning said at least one beam of light at a substantially constant angular velocity in a plane aligned with the direction of travel of the modulating sound in the acousto-optic means and means for matching optically the angular velocity with respect to the scanning means of the modulating sound in the acousto-optic means to the angular velocity of beam scanning of the scanning means so that said modulating sound angular velocity or the angular velocity of an image of the pattern thereof is substantially equal to and aligned with said beam scanning angular velocity and, for a given length of optical path intermediate the position of modulation and the scanning means, the bandwidth of the projected video image is substantially greater in use than the bandwidth achievable with a single channel acousto-optic modulator positioned at the Scophony distance from the scanning means, said Scophony distance being no less than said given length of optical path.
摘要翻译： 用于产生高分辨率投影视频图像的装置，包括在使用中提供至少一个准直光束的光发射装置，用于调制所述至少一束光束的声光装置，用于在所述至少一个光束处扫描所述至少一个光束的装置 在与声光装置中的调制声音的行进方向对准的平面中的基本恒定的角速度和用于将角度速度相对于声光装置中的调制声音的扫描装置光学匹配的装置， 扫描装置的光束扫描的速度，使得所述调制声角速度或其图案的图像的角速度基本上等于并与所述光束扫描角速度对准，并且对于给定长度的光路在位置 的调制和扫描装置，投影视频图像的带宽在使用中比带宽大得多 通过位于距离扫描装置的Scorpony距离处的单通道声光调制器可实现，所述Scophony距离不小于所述给定长度的光路。
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17.发明公开Apparatus for the display of high definition images 失效Vorrichtung zur Wiedergabe vonhochauflösendenBildern。
公开(公告)号：EP0211596A2
公开(公告)日：1987-02-25
申请号：EP86305809.5
申请日：1986-07-29
CPC分类号： H04N9/3129 , H04N3/10 , H04N13/337
摘要： Apparatus for producing high definition projected video images comprising light-emitting means providing in use at least one collimated beam of light, acousto-optic means for modulating said at least one beam of light, means for scanning said at least one beam of light at a substantially constant angular velocity in a plane aligned with the direction of travel of the modulating sound in the acousto-optic means and means for matching optically the angular velocity with respect to the scanning means of the modulating sound in the acousto-optic means to the angular velocity of beam scanning of the scanning means so that said modulating sound angular velocity or the angular velocity of an image of the pattern thereof is substantially equal to and aligned with said beam scanning angular velocity and, for a given length of optical path intermediate the position of modulation and the scanning means, the bandwidth of the projected video image is substantially greater in use than the bandwidth achievable with a single channel acousto-optic modulator positioned at the Scophony distance from the scanning means, said Scophony distance being no less than said given length of optical path.
摘要翻译： 用于产生高分辨率投影视频图像的装置，包括在使用中提供至少一个准直光束的光发射装置，用于调制所述至少一束光束的声光装置，用于在所述至少一个光束处扫描所述至少一个光束的装置 在与声光装置中的调制声音的行进方向对准的平面中的基本恒定的角速度和用于将角度速度相对于声光装置中的调制声音的扫描装置光学匹配的装置， 扫描装置的光束扫描的速度，使得所述调制声角速度或其图案的图像的角速度基本上等于并与所述光束扫描角速度对准，并且对于给定长度的光路在位置 的调制和扫描装置，投影视频图像的带宽在使用中比带宽大得多 通过位于距离扫描装置的Scorpony距离处的单通道声光调制器可实现，所述Scophony距离不小于所述给定长度的光路。
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公开(公告)号：EP0921751B1
公开(公告)日：2004-12-29
申请号：EP97915565.2
申请日：1997-04-02
IPC分类号： A61B1/00
CPC分类号： A61B1/00193 , A61B1/00009 , A61B1/00186 , A61B1/00188
摘要： Apparatus and method for providing stereo-image pairs, for use in endoscopy. A birefringent optical component (11) creates two virtual pupils (o.E) to provide spaced view points (P1,P2) of an object field through a single real pupil (16), the light from each of the two view points having a respectively different polarization. The birefringent component (11) may be in the form of a calcite slab or comprise liquid crystal material. By suitable orientation of two such components with respect to each other, the path lengths for the two polarizations of light may be made equivalent and rotation of the planes of polarization of this light through 90 degrees by means disposed between the birefringent components can improve the performance of the system. The rotation device may comprise a half-wave plate (21) or a layer of liquid crystal material. By tilting the slab of calcite, the observer may be provided with a change in view point and, thereby, some motion parallax. In one embodiment of the invention, a polarising beam splitter (7) directs light corresponding to each of the two view points to respectively different CCD's (6, 10) following its passage through the single pupil.
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公开(公告)号：EP1299764B1
公开(公告)日：2004-05-26
申请号：EP01949658.7
申请日：2001-07-10
IPC分类号： G02B27/26
CPC分类号： G02B27/2214 , H04N13/286 , H04N13/305 , H04N13/31 , H04N13/32 , H04N13/324 , H04N13/361 , H04N13/368 , H04N13/373 , H04N13/376 , H04N13/398
摘要： Apparatus and method for the display of autostereoscopic images, in which two or more perspective views are generated by a single transmissive display screen is provided. A structured light source behind the screen directs light through different sets of display elements to correspondingly different viewing zones. The structured light source includes two crossed arrays of cylindrical convergent optical elements, two linear arrays of polarisation altering elements which, in conjunction with the convergent arrays and the first polariser of the LCD, prevent light from passing through a particular set of display elements and reaching the wrong viewing zone. In some variations, one or both of the polarisation altering arrays may be programmed. Observer co-ordinate data permits the correct viewing zone to be co-located with each of the observer's corresponding eyes and includes devices for accommodating changes in the observer's distance from the display. The displayed image adapts to the observer's location. All or part of the display may provide conventional two-dimensional images at the screen's full resolution.
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20.发明授权
公开(公告)号：EP1149322B1
公开(公告)日：2003-09-10
申请号：EP00900675.0
申请日：2000-01-06
IPC分类号： G02B27/22
CPC分类号： G02B27/2214 , H04N13/305 , H04N13/31 , H04N13/327 , H04N13/346 , H04N13/398
摘要： Apparatus and method are provided for the control of the relative position of two optical structures, such as a lenticular screen (2) and corresponding barrier screen (1), such as are typically used in an autostereoscopic display. The provision of special patterns on the barrier screen combined with the use of specific lens elements (4) of the lenticular screen provides for a stable and accurately located viewing zone, without the need for the structural stablity which would be demanded using independent position monitoring means for each of the components. Both lateral and longitudinal control of the location of the viewing zones are easily provided and manufacturing tolerances and dimensional changes which may be caused by thermal effects are automatically accommodated with a tapered lenticular structure. The patterns are constructed so that a short fragment of the image thereof (9, 10, 11) is unambiguously identifiable, enabling the precise measurement of a range of relative positions which exceeds the practical field of view of the lens elements.
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