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11. 发明申请

US20060158462A1 High dynamic range image viewing on low dynamic range displays 有权
公开(公告)号：US20060158462A1
公开(公告)日：2006-07-20
申请号：US11372650
申请日：2006-03-10
申请人： Kentaro Toyama , Matthew Uyttendaele , William Crow
发明人： Kentaro Toyama , Matthew Uyttendaele , William Crow
IPC分类号： G09G5/00
CPC分类号： G06T5/007 , G06T2207/20208 , G09G5/02 , G09G2320/0271
摘要： Techniques and tools for displaying/viewing HDR images are described. In one aspect, a background image constructed from HDR image information is displayed along with portions of the HDR image corresponding to one or more regions of interest. The portions have at least one display parameter (e.g., a tone mapping parameter) that differs from a corresponding display parameter for the background image. Regions of interest and display parameters can be determined by a user (e.g., via a GUI). In another aspect, an intermediate image is determined based on image data corresponding to one or more regions of interest of the HDR image. The intermediate image has a narrower dynamic range than the HDR image. The intermediate image or a derived image is then displayed. The techniques and tools can be used to compare, for example, different tone mappings, compression methods, or color spaces in the background and regions of interest.

12. 发明授权

US07961983B2 Generating gigapixel images 有权
标题翻译：生成千兆像素图像
公开(公告)号：US07961983B2
公开(公告)日：2011-06-14
申请号：US11779871
申请日：2007-07-18
申请人： Matthew Uyttendaele , Michael Cohen
发明人： Matthew Uyttendaele , Michael Cohen
IPC分类号： G06K9/00 , G06K9/36 , G06K9/32
CPC分类号： G06T3/4038
摘要： A gigapixel image is generated from a set of images in raw format depicting different portions of a panoramic scene that has up to a full spherical field of view. Radiometric alignment of the images creates a set of images in radiance format. Geometric alignment of the radiance format images creates a set of true poses for the images in radiance format. A gigapixel image depicting the entire scene is assembled from the set of radiance format images and radiance format true poses for the images. The set of images in raw format is captured using a conventional digital camera, equipped with a telephoto lens, attached to a motorized head. The head is programmed to pan and tilt the camera in prescribed increments to individually capture the images at a plurality of exposures and with a prescribed overlap between images depicting adjacent portions of the scene.
摘要翻译：从原始格式的一组图像生成一个千兆像素图，描绘具有全球面视野的全景场景的不同部分。图像的放射线对准会以辐射格式创建一组图像。辐射格式图像的几何对齐为辐射格式的图像创建一组真实姿势。描绘整个场景的百万像素图像是由一组辐射格式图像和辐射格式组合而成的图像的真实姿势。原始格式的图像集是使用配有远摄镜头的常规数码相机来捕捉的，该长焦镜头连接到电动头部。头被编程为以规定的增量平移和倾斜相机，以单独地以多次曝光并且以描绘场景的相邻部分的图像之间的规定的重叠来捕获图像。

13. 发明授权

US07379583B2 Color segmentation-based stereo 3D reconstruction system and process employing overlapping images of a scene captured from viewpoints forming either a line or a grid 有权
标题翻译：基于颜色分割的立体3D重建系统和使用从形成线或网格的视点捕获的场景的重叠图像的过程
公开(公告)号：US07379583B2
公开(公告)日：2008-05-27
申请号：US11097529
申请日：2005-03-31
申请人： Charles Zitnick, III , Sing Bing Kang , Matthew Uyttendaele , Simon Winder , Richard Szeliski
发明人： Charles Zitnick, III , Sing Bing Kang , Matthew Uyttendaele , Simon Winder , Richard Szeliski
IPC分类号： G06K9/00
CPC分类号： G06K9/20 , G06K2209/40 , G06T7/55
摘要： A system and process for computing a 3D reconstruction of a scene from multiple images thereof, which is based on a color segmentation-based approach, is presented. First, each image is independently segmented. Second, an initial disparity space distribution (DSD) is computed for each segment, using the assumption that all pixels within a segment have the same disparity. Next, each segment's DSD is refined using neighboring segments and its projection into other images. The assumption that each segment has a single disparity is then relaxed during a disparity smoothing stage. The result is a disparity map for each image, which in turn can be used to compute a per pixel depth map if the reconstruction application calls for it.
摘要翻译：提出了一种用于基于基于颜色分割的方法从其多个图像计算场景的3D重建的系统和过程。首先，每个图像被独立地分割。第二，使用假设一个段内的所有像素具有相同的视差来为每个段计算初始视差空间分布（DSD）。接下来，每个段的DSD使用相邻段进行细化，并将其投影到其他图像中。然后在视差平滑阶段放宽每个段具有单个视差的假设。结果是每个图像的视差图，如果重建应用程序需要它，它又可以用于计算每像素深度图。

14. 发明授权

US07292257B2 Interactive viewpoint video system and process 有权
标题翻译：互动观点视频系统和过程
公开(公告)号：US07292257B2
公开(公告)日：2007-11-06
申请号：US10880774
申请日：2004-06-28
申请人： Sing Bing Kang , Charles Zitnick, III , Matthew Uyttendaele , Simon Winder , Richard Szeliski
发明人： Sing Bing Kang , Charles Zitnick, III , Matthew Uyttendaele , Simon Winder , Richard Szeliski
IPC分类号： G09G5/00 , G06T15/00 , G06T15/40 , G06K9/00
CPC分类号： H04N5/2627 , G06T7/557 , G06T7/596 , G06T15/205 , G06T2207/10021
摘要： A system and process for generating, and then rendering and displaying, an interactive viewpoint video in which a user can watch a dynamic scene while manipulating (freezing, slowing down, or reversing) time and changing the viewpoint at will. In general, the interactive viewpoint video is generated using a small number of cameras to capture multiple video streams. A multi-view 3D reconstruction and matting technique is employed to create a layered representation of the video frames that enables both efficient compression and interactive playback of the captured dynamic scene, while at the same time allowing for real-time rendering.
摘要翻译：一种用于生成并再现和显示交互视点视频的系统和过程，其中用户可以在操纵（冻结，减慢或反转）时间并随意改变视点的同时观看动态场景。通常，使用少量摄像机生成交互视点视频以捕获多个视频流。采用多视图3D重建和消隐技术来创建视频帧的分层表示，使得能够实现捕获的动态场景的高效压缩和交互式回放，同时允许实时渲染。

15. 发明授权

US07142209B2 Real-time rendering system and process for interactive viewpoint video that was generated using overlapping images of a scene captured from viewpoints forming a grid 有权
标题翻译：使用从形成网格的视点拍摄的场景的重叠图像生成的交互视点视频的实时渲染系统和处理
公开(公告)号：US07142209B2
公开(公告)日：2006-11-28
申请号：US11097549
申请日：2005-03-31
申请人： Matthew Uyttendaele , Simon Winder , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
发明人： Matthew Uyttendaele , Simon Winder , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
IPC分类号： G06T15/20
CPC分类号： G06T15/205 , G09G5/14 , G09G2320/0261 , G09G2340/10
摘要： A system and process for rendering and displaying an interactive viewpoint video is presented in which a user can watch a dynamic scene while manipulating (freezing, slowing down, or reversing) time and changing the viewpoint at will. The ability to interactively control viewpoint while watching a video is an exciting new application for image-based rendering. Because any intermediate view can be synthesized at any time, with the potential for space-time manipulation, this type of video has been dubbed interactive viewpoint video.
摘要翻译：呈现用于呈现和显示交互式视点视频的系统和过程，其中用户可以在操纵（冻结，减速或反转）时间并随意改变视点的同时观看动态场景。在观看视频时交互控制视点的能力是基于图像的渲染的令人兴奋的新应用。因为任何中间视图可以随时被合成，具有时空操纵的潜力，这种类型的视频被称为交互视点视频。

16. 发明申请

US20060072851A1 Deghosting mosaics using multiperspective plane sweep 审中-公开
公开(公告)号：US20060072851A1
公开(公告)日：2006-04-06
申请号：US11286524
申请日：2005-11-22
申请人： Sing Bing Kang , Richard Szeliski , Matthew Uyttendaele
发明人： Sing Bing Kang , Richard Szeliski , Matthew Uyttendaele
IPC分类号： G06K9/32 , G06K9/36
CPC分类号： G06T5/20 , G06K9/32 , G06K2009/2045 , G06T3/00 , G06T5/003 , G06T7/30 , G06T7/55 , G06T15/503
摘要： A system and method for deghosting mosaics provides a novel multiperspective plane sweep approach for generating an image mosaic from a sequence of still images, video images, scanned photographic images, computer generated images, etc. This multiperspective plane sweep approach uses virtual camera positions to compute depth maps for columns of overlapping pixels in adjacent images. Object distortions and ghosting caused by image parallax when generating the image mosaics are then minimized by blending pixel colors, or grey values, for each computed depth to create a common composite area for each of the overlapping images. Further, the multiperspective plane sweep approach described herein is both computationally efficient, and applicable to both the case of limited overlap between the images used for creating the image mosaics, and to the case of extensive or increased image overlap.

17. 发明申请

US20050286757A1 Color segmentation-based stereo 3D reconstruction system and process 有权
标题翻译：基于颜色分割的立体3D重建系统和过程
公开(公告)号：US20050286757A1
公开(公告)日：2005-12-29
申请号：US10879327
申请日：2004-06-28
申请人： Charles Zitnick , Sing Kang , Matthew Uyttendaele , Simon Winder , Richard Szeliski
发明人： Charles Zitnick , Sing Kang , Matthew Uyttendaele , Simon Winder , Richard Szeliski
IPC分类号： G06K9/00 , G06T7/00
CPC分类号： G06K9/20 , G06K2209/40 , G06T7/55
摘要： A system and process for computing a 3D reconstruction of a scene from multiple images thereof, which is based on a color segmentation-based approach, is presented. First, each image is independently segmented. Second, an initial disparity space distribution (DSD) is computed for each segment, using the assumption that all pixels within a segment have the same disparity. Next, each segment's DSD is refined using neighboring segments and its projection into other images. The assumption that each segment has a single disparity is then relaxed during a disparity smoothing stage. The result is a disparity map for each image, which in turn can be used to compute a per pixel depth map if the reconstruction application calls for it.
摘要翻译：提出了一种用于基于基于颜色分割的方法从其多个图像计算场景的3D重建的系统和过程。首先，每个图像被独立地分割。第二，使用假设一个段内的所有像素具有相同的视差来为每个段计算初始视差空间分布（DSD）。接下来，每个段的DSD使用相邻段进行细化，并将其投影到其他图像中。然后在视差平滑阶段放宽每个段具有单个视差的假设。结果是每个图像的视差图，如果重建应用程序需要它，它又可以用于计算每像素深度图。

18. 发明授权

US08098728B2 Compressing and decompressing multiple, layered, video streams employing multi-directional spatial encoding 有权
标题翻译：使用多向空间编码压缩和解压缩多个分层的视频流
公开(公告)号：US08098728B2
公开(公告)日：2012-01-17
申请号：US11182144
申请日：2005-07-15
申请人： Simon Winder , Matthew Uyttendaele , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
发明人： Simon Winder , Matthew Uyttendaele , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N21/4347 , H04N13/111 , H04N19/109 , H04N19/39 , H04N19/593 , H04N19/597 , H04N19/61 , H04N19/70 , H04N19/96 , H04N21/2365
摘要： A process for compressing and decompressing non-keyframes in sequential sets of contemporaneous video frames making up multiple video streams where the video frames in a set depict substantially the same scene from different viewpoints. Each set of contemporaneous video frames has a plurality frames designated as keyframes with the remaining being non-keyframes. In one embodiment, the non-keyframes are compressed using a multi-directional spatial prediction technique. In another embodiment, the non-keyframes of each set of contemporaneous video frames are compressed using a combined chaining and spatial prediction compression technique. The spatial prediction compression technique employed can be a single direction technique where just one reference frame, and so one chain, is used to predict each non-keyframe, or it can be a multi-directional technique where two or more reference frames, and so chains, are used to predict each non-keyframe.
摘要翻译：一种用于在构成多个视频流的同步视频帧的顺序集合中压缩和解压缩非关键帧的过程，其中集合中的视频帧从不同视点描绘基本相同的场景。每组同时期的视频帧具有指定为关键帧的多个帧，其余的是非关键帧。在一个实施例中，使用多方向空间预测技术来压缩非关键帧。在另一个实施例中，使用组合链接和空间预测压缩技术来压缩每组同时期视频帧的非关键帧。所使用的空间预测压缩技术可以是单向技术，其中仅使用一个参考帧，因此使用一条链来预测每个非关键帧，或者它可以是多方向技术，其中两个或更多个参考帧等链，用于预测每个非关键帧。

19. 发明授权

US07778491B2 Oblique image stitching 有权
标题翻译：倾斜图像拼接
公开(公告)号：US07778491B2
公开(公告)日：2010-08-17
申请号：US11279241
申请日：2006-04-10
申请人： Drew Steedly , Richard Szeliski , Matthew Uyttendaele , Michael Cohen
发明人： Drew Steedly , Richard Szeliski , Matthew Uyttendaele , Michael Cohen
IPC分类号： G06K9/32 , G06K9/36
CPC分类号： G06T3/4038 , G06K9/32 , G06K2009/2045
摘要： An “Oblique Image Stitcher” provides a technique for constructing a photorealistic oblique view from a set of input images representing a series of partially overlapping views of a scene. The Oblique Image Stitcher first projects each input image onto a geometric proxy of the scene and renders the images from a desired viewpoint. Once the images have been projected onto the geometric proxy, the rendered images are evaluated to identify optimum seams along which the various images are to be blended. Once the optimum seams are selected, the images are remapped relative to those seams by leaving the mapping unchanged at the seams and interpolating a smooth mapping between the seams. The remapped images are then composited to construct the final mosaiced oblique view of the scene. The result is a mosaic image constructed by warping the input images in a photorealistic manner which agrees at seams between images.
摘要翻译： “倾斜图像拼接器”提供了一种用于从表示场景的一系列部分重叠视图的一组输入图像中构造逼真倾斜视图的技术。倾斜图像拼接器首先将每个输入图像投影到场景的几何代理上，并从期望的角度呈现图像。一旦将图像投影到几何代理上，则对所渲染的图像进行评估，以确定要混合各种图像的最佳接缝。一旦选择最佳接缝，通过在接缝处保持不变，并在接缝之间插入平滑的映射，相对于那些接缝重新映射图像。然后将重新映射的图像合成以构建场景的最终镶嵌斜视图。结果是通过以照片写实的方式扭曲输入图像构成的马赛克图像，其在图像之间的接缝处一致。

20. 发明授权

US07382931B2 System and process for generating high dynamic range video 失效
标题翻译：用于生成高动态范围视频的系统和过程
公开(公告)号：US07382931B2
公开(公告)日：2008-06-03
申请号：US11036944
申请日：2005-01-14
申请人： Sing Bing Kang , Matthew Uyttendaele , Simon Winder , Richard Szeliski
发明人： Sing Bing Kang , Matthew Uyttendaele , Simon Winder , Richard Szeliski
IPC分类号： G06K9/40
CPC分类号： H04N5/2355 , G06T5/50 , H04N5/235 , H04N5/2352 , H04N5/77 , H04N5/781 , H04N5/85
摘要： A system and process for generating High Dynamic Range (HDR) video is presented which involves first capturing a video image sequence while varying the exposure so as to alternate between frames having a shorter and longer exposure. The exposure for each frame is set prior to it being captured as a function of the pixel brightness distribution in preceding frames. Next, for each frame of the video, the corresponding pixels between the frame under consideration and both preceding and subsequent frames are identified. For each corresponding pixel set, at least one pixel is identified as representing a trustworthy pixel. The pixel color information associated with the trustworthy pixels is then employed to compute a radiance value for each pixel set to form a radiance map. A tone mapping procedure can then be performed to convert the radiance map into an 8-bit representation of the HDR frame.
摘要翻译：提出了用于产生高动态范围（HDR）视频的系统和过程，其涉及首先在改变曝光的同时捕获视频图像序列，以便在具有较短和较长曝光的帧之间交替。每个帧的曝光在其被捕获之前被设置为在先前帧中的像素亮度分布的函数。接下来，对于视频的每个帧，识别所考虑的帧与前后帧之间的对应像素。对于每个对应的像素集合，至少一个像素被识别为表示可靠的像素。然后使用与可信赖像素相关联的像素颜色信息来计算每个像素组的辐射值以形成辐射图。然后可以执行色调映射过程以将辐射图转换成HDR帧的8位表示。

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