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    Compressing and decompressing multiple, layered, video streams employing multi-directional spatial encoding
    1.
    发明授权
    Compressing and decompressing multiple, layered, video streams employing multi-directional spatial encoding 有权
    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：US08774274B2

    公开(公告)日：2014-07-08

    申请号：US13348262

    申请日：2012-01-11

    申请人： Simon Winder ,  Matthew T. Uyttendaele ,  Charles Lawrence Zitnick, III ,  Richard Szeliski ,  Sing Bing Kang

    发明人： Simon Winder ,  Matthew T. Uyttendaele ,  Charles Lawrence Zitnick, III ,  Richard Szeliski ,  Sing Bing Kang

    IPC分类号： H04N7/12

    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。

    COMPRESSING AND DECOMPRESSING MULTIPLE, LAYERED, VIDEO STREAMS EMPLOYING MULTI-DIRECTIONAL SPATIAL ENCODING
    2.
    发明申请
    COMPRESSING AND DECOMPRESSING MULTIPLE, LAYERED, VIDEO STREAMS EMPLOYING MULTI-DIRECTIONAL SPATIAL ENCODING 有权
    压缩和分解采用多方向空间编码的多层，多层视频流

    公开(公告)号：US20120114037A1

    公开(公告)日：2012-05-10

    申请号：US13348262

    申请日：2012-01-11

    申请人： Simon Winder ,  Matthew T. Uyttendaele ,  Charles Lawrence Zitnick, III ,  Richard Szeliski ,  Sing Bing Kang

    发明人： Simon Winder ,  Matthew T. Uyttendaele ,  Charles Lawrence Zitnick, III ,  Richard Szeliski ,  Sing Bing Kang

    IPC分类号： H04N11/02

    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上相同的场景。 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。

    System and process for generating a two-layer, 3D representation of a scene
    3.
    发明授权
    System and process for generating a two-layer, 3D representation of a scene 有权
    用于生成场景的两层3D表示的系统和过程

    公开(公告)号：US07015926B2

    公开(公告)日：2006-03-21

    申请号：US10879235

    申请日：2004-06-28

    申请人： Charles Lawrence Zitnick, III ,  Richard Szeliski ,  Sing Bing Kang ,  Matthew T. Uyttendaele ,  Simon Winder

    发明人： Charles Lawrence Zitnick, III ,  Richard Szeliski ,  Sing Bing Kang ,  Matthew T. Uyttendaele ,  Simon Winder

    IPC分类号： G09G5/02

    CPC分类号： G06T15/205

    摘要： A system and process for generating a two-layer, 3D representation of a digital or digitized image from the image and a pixel disparity map of the image is presented. The two layer representation includes a main layer having pixels exhibiting background colors and background disparities associated with correspondingly located pixels of depth discontinuity areas in the image, as well as pixels exhibiting colors and disparities associated with correspondingly located pixels of the image not found in these depth discontinuity areas. The other layer is a boundary layer made up of pixels exhibiting foreground colors, foreground disparities and alpha values associated with the correspondingly located pixels of the depth discontinuity areas. The depth discontinuity areas correspond to prescribed sized areas surrounding depth discontinuities found in the image using a disparity map thereof.

    摘要翻译： 提出了一种用于从图像生成数字或数字化图像的二层3D表示和图像的像素视差图的系统和过程。 两层表示包括具有显示背景颜色的像素和与图像中的深度不连续区域的相应定位的像素相关联的背景差异的主层以及与在这些深度中未找到的图像的相应定位的像素相关联的颜色和差异的像素 不连续区域。 另一层是由与前述深度不连续区域的对应位置的像素相关联的前景色，前景差异和α值的像素构成的边界层。 深度不连续区域对应于使用其视差图在图像中发现的围绕深度不连续性的规定尺寸的区域。

    System and process for generating high dynamic range images from multiple exposures of a moving scene
    5.
    发明授权
    System and process for generating high dynamic range images from multiple exposures of a moving scene 有权
    用于从移动场景的多次曝光中产生高动态范围图像的系统和过程

    公开(公告)号：US07142723B2

    公开(公告)日：2006-11-28

    申请号：US10623033

    申请日：2003-07-18

    申请人： Sing Bing Kang ,  Matthew T. Uyttendaele ,  Simon Winder ,  Richard Szeliski

    发明人： Sing Bing Kang ,  Matthew T. Uyttendaele ,  Simon Winder ,  Richard Szeliski

    IPC分类号： G06K9/40 ,  H04N5/235

    CPC分类号： G06T5/50 ,  G06T7/269

    摘要： A system and process for generating a high dynamic range (HDR) image from a bracketed image sequence, even in the presence of scene or camera motion, is presented. This is accomplished by first selecting one of the images as a reference image. Then, each non-reference image is registered with another one of the images, including the reference image, which exhibits an exposure that is both closer to that of the reference image than the image under consideration and closest among the other images to the exposure of the image under consideration, to generate a flow field. The flow fields generated for the non-reference images not already registered with the reference image are concatenated to register each of them with the reference image. Each non-reference image is then warped using its associated flow field. The reference image and the warped images are combined to create a radiance map representing the HDR image.

    摘要翻译： 提出了即使在存在场景或相机运动的情况下也可以从包围的图像序列生成高动态范围（HDR）图像的系统和过程。 这是通过首先选择一个图像作为参考图像来实现的。 然后，将每个非参考图像与包括参考图像的另一个图像一起登记，该参考图像表现出比正在考虑的图像更接近参考图像的曝光，并且在其他图像中最接近曝光 考虑的图像，产生一个流场。 为未参考图像注册的非参考图像生成的流场被连接以将它们注册到参考图像。 然后使用其相关联的流场对每个非参考图像进行翘曲。 参考图像和翘曲图像被组合以产生表示HDR图像的辐射图。

    System and process for generating high dynamic range video
    6.
    发明授权
    System and process for generating high dynamic range video 失效
    用于生成高动态范围视频的系统和过程

    公开(公告)号：US07010174B2

    公开(公告)日：2006-03-07

    申请号：US10965935

    申请日：2004-10-15

    申请人： Sing Bing Kang ,  Matthew T. Uyttendaele ,  Simon Winder ,  Richard Szeliski

    发明人： Sing Bing Kang ,  Matthew T. 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。

    System and process for generating high dynamic range video
    7.
    发明授权
    System and process for generating high dynamic range video 失效
    用于生成高动态范围视频的系统和过程

    公开(公告)号：US06879731B2

    公开(公告)日：2005-04-12

    申请号：US10425338

    申请日：2003-04-29

    申请人： Sing Bing Kang ,  Matthew T. Uyttendaele ,  Simon Winder ,  Richard Szeliski

    发明人： Sing Bing Kang ,  Matthew T. Uyttendaele ,  Simon Winder ,  Richard Szeliski

    IPC分类号： H04N5/235 ,  H04N5/77 ,  H04N5/781 ,  H04N5/85 ,  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。