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公开(公告)号：EP1299764A1
公开(公告)日：2003-04-09
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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2.发明授权STEREOSCOPIC RECORDING METHOD AND APPARATUS, AND PRODUCTION METHOD AND APPARATUS 失效立体声记录方法和装置，以及生产方法和装置
公开(公告)号：EP0188424B1
公开(公告)日：1989-07-12
申请号：EP84903647.0
申请日：1984-09-28
IPC分类号： G03B35/00
CPC分类号： G03B35/00 , H04N13/189 , H04N13/229 , H04N13/257 , H04N13/305 , Y10S430/147
摘要： PCT No. PCT/GB84/00332 Sec. 371 Date May 6, 1985 Sec. 102(e) Date May 6, 1985 PCT Filed Sep. 28, 1984 PCT Pub. No. WO85/01593 PCT Pub. Date Apr. 11, 1985.Apparatus for producing a record of an object field in which substantially perspective change in one direction only is recorded. The apparatus comprises elongate aperture means (35) and an array of lens elements (34) which extends in two dimensions and is disposed in an image field. Each lens element (34) is convergent in all planes orthogonal to the array. Recording means are so arranged that each lens element (34) forms an image thereon. Each recorded image (36) is derived from rays from a range of perspectives of the object field in one direction and a substantially smaller range in an orthogonal direction and each recorded image (36) is distinct from each other recorded image. Reproduction apparatus allows an autostereoscopic image to be formed on conventional lenticular material from an intermediate record produced by the recording apparatus.
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公开(公告)号：EP4387439A2
公开(公告)日：2024-06-26
申请号：EP22765124.7
申请日：2022-08-16
申请人： Graham, Stewart
发明人： Graham, Stewart
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公开(公告)号：EP0888572B1
公开(公告)日：2002-11-06
申请号：EP97908373.0
申请日：1997-03-19
CPC分类号： G02B23/2415 , A61B1/00193
摘要： A stereo-endoscope, by which two perspective views of an objective field are viewed, is provided. A divergent optical arrangement, positioned between the object field and two objective lenses, each of which forms a respective image of the object field, reduces the disparity between corresponding points in the two image fields, where such disparity is caused by distortion of the image formed.
摘要翻译： 提供了一种立体内窥镜，通过该立体内窥镜可以看到目标区域的两个透视图。 位于物场与两个物镜之间的发散光学装置（其各自形成物场的相应图像）减小了两个图像场中的对应点之间的差异，其中这种差异由所形成的图像的失真 。
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公开(公告)号：EP0865626B1
公开(公告)日：1999-07-21
申请号：EP96941140.4
申请日：1996-12-05
CPC分类号： G02B5/32 , G02B27/0093 , G02B27/2214 , H04N13/305 , H04N13/31 , H04N13/312 , H04N13/32 , H04N13/346 , H04N13/359 , H04N13/376 , H04N13/38
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. In certain embodiments, the structured source comprises a patterned mask which prevents light from passing through a particular set of elements and reaching the wrong zone. The pattern of the mask may be programmed. Observer co-ordinate data permits the correct viewing zone to be co-located with each of the observer's corresponding eyes. A tapered lenticular structure can provide the means for adapting to changes in the observer's distance from the display. In further embodiments a holographic optical element (HOE) may be used instead of an array of conventional lens elements. The HOE typically incorporates the function of providing in conjunction with a suitably located light source the viewing zones required for respective sets of display elements. The display may also be used to provide conventional two-dimensional images at the display screen's full resolution.
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公开(公告)号：EP0921751A1
公开(公告)日：1999-06-16
申请号：EP97915565.0
申请日：1997-04-02
IPC分类号： A61B1
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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7.发明公开
公开(公告)号：EP0188424A1
公开(公告)日：1986-07-30
申请号：EP84903647.0
申请日：1984-09-28
CPC分类号： G03B35/00 , H04N13/189 , H04N13/229 , H04N13/257 , H04N13/305 , Y10S430/147
摘要： PCT No. PCT/GB84/00332 Sec. 371 Date May 6, 1985 Sec. 102(e) Date May 6, 1985 PCT Filed Sep. 28, 1984 PCT Pub. No. WO85/01593 PCT Pub. Date Apr. 11, 1985.Apparatus for producing a record of an object field in which substantially perspective change in one direction only is recorded. The apparatus comprises elongate aperture means (35) and an array of lens elements (34) which extends in two dimensions and is disposed in an image field. Each lens element (34) is convergent in all planes orthogonal to the array. Recording means are so arranged that each lens element (34) forms an image thereon. Each recorded image (36) is derived from rays from a range of perspectives of the object field in one direction and a substantially smaller range in an orthogonal direction and each recorded image (36) is distinct from each other recorded image. Reproduction apparatus allows an autostereoscopic image to be formed on conventional lenticular material from an intermediate record produced by the recording apparatus.
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公开(公告)号：EP0865626A1
公开(公告)日：1998-09-23
申请号：EP96941140.0
申请日：1996-12-05
CPC分类号： G02B5/32 , G02B27/0093 , G02B27/2214 , H04N13/305 , H04N13/31 , H04N13/312 , H04N13/32 , H04N13/346 , H04N13/359 , H04N13/376 , H04N13/38
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. In certain embodiments, the structured source comprises a patterned mask which prevents light from passing through a particular set of elements and reaching the wrong zone. The pattern of the mask may be programmed. Observer co-ordinate data permits the correct viewing zone to be co-located with each of the observer's corresponding eyes. A tapered lenticular structure can provide the means for adapting to changes in the observer's distance from the display. In further embodiments a holographic optical element (HOE) may be used instead of an array of conventional lens elements. The HOE typically incorporates the function of providing in conjunction with a suitably located light source the viewing zones required for respective sets of display elements. The display may also be used to provide conventional two-dimensional images at the display screen's full resolution.
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公开(公告)号：EP0687366A1
公开(公告)日：1995-12-20
申请号：EP94908408.0
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：EP0572471A1
公开(公告)日：1993-12-08
申请号：EP92904972.0
申请日：1992-02-19
CPC分类号： H04N19/00 , H04N13/10 , H04N13/15 , H04N13/229 , H04N19/597
摘要： Apparatus and method for the compression of three-dimensional image data derived from different perspectives of an object field. The data is arranged in a perspective array having at least two dimensions with respective axes, a first dimension representing distance across the object field and a second dimension representing perspective of the object field. Points in the object field provide corresponding loci in the perspective array. Each locus and its skew with respect to the axis of the perspective dimension is found by correlating the associated image data. The skew provides a measure of the range or depth of the related point in the object field. The invention has applications in machine vision for robots and collision avoidance. It may also be applied to data compression for transmission of three-dimensional images and to the manipulation of such images.
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