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公开(公告)号:US20120269270A1
公开(公告)日:2012-10-25
申请号:US13451161
申请日:2012-04-19
申请人: Ying Chen , Peisong Chen , Marta Karczewicz
发明人: Ying Chen , Peisong Chen , Marta Karczewicz
IPC分类号: H04N7/32
CPC分类号: H04N19/513 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/52 , H04N19/597
摘要: Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.
摘要翻译: 本公开的方面在一个示例中涉及一种包括从第一视图识别第一时间位置中的第一视频数据块的方法,其中第一块与第一视差运动矢量相关联。 该方法还包括确定与第二视频数据块相关联的第二运动矢量的运动矢量预测器,其中运动矢量预测器基于第一视差运动矢量。 当第二运动矢量包括视差运动矢量时,该方法包括确定运动矢量预测器包括缩放第一视差运动矢量以产生缩放的运动矢量预测器,其中缩放第一视差运动矢量包括应用包括视距 的第二视差运动矢量除以第一运动矢量与第一视差运动矢量的视距。
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公开(公告)号:US20120189058A1
公开(公告)日:2012-07-26
申请号:US13353625
申请日:2012-01-19
申请人: Peisong Chen , Wei-Jung Chien , Marta Karczewicz , Ying Chen
发明人: Peisong Chen , Wei-Jung Chien , Marta Karczewicz , Ying Chen
IPC分类号: H04N7/32
CPC分类号: H04N19/577 , H04N19/109 , H04N19/159 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/61
摘要: The example techniques described in this disclosure provide for an efficient manner to encode or decode a video block of a picture using a single reference picture list. The single reference picture list may include identifiers for reference picture or pictures used to encode or decode the video block. In some examples, a video encoder or decoder may encode or decode a video block that is predicted from two reference pictures using the single reference picture list, and encode or decode a video block that is predicted from one reference picture using the same, single reference picture list.
摘要翻译: 在本公开中描述的示例技术提供了使用单个参考图片列表对图像的视频块进行编码或解码的有效方式。 单个参考图片列表可以包括用于编码或解码视频块的参考图片或图片的标识符。 在一些示例中,视频编码器或解码器可以使用单个参考图片列表从两个参考图片预测的视频块编码或解码,并且使用相同的单个参考来对从一个参考图片预测的视频块进行编码或解码 图片列表。
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公开(公告)号:US20110249745A1
公开(公告)日:2011-10-13
申请号:US12979876
申请日:2010-12-28
申请人: Peisong Chen , Marta Karczewicz , Wei-Jung Chien , Xianglin Wang
发明人: Peisong Chen , Marta Karczewicz , Wei-Jung Chien , Xianglin Wang
IPC分类号: H04N7/26
CPC分类号: H04N19/46 , H04N19/105 , H04N19/70
摘要: A video block syntax element indicates whether all of the partitions of a video block are predicted based on a same reference list and no greater than quarter-pixel accuracy is used. If the video block syntax element is set, partition-level signaling of the reference lists is avoided. If the video block syntax element is not set, partition-level signaling of the reference lists occurs. If the video block syntax element is set, partition-level syntax elements may be used for each of the partitions of the video block, wherein the partition-level syntax elements each identify one of the reference lists and motion vector accuracy for a given one of the partitions.
摘要翻译: 视频块语法元素指示基于相同的参考列表来预测视频块的所有分区,并且使用不大于四分之一像素的精度。 如果设置了视频块语法元素,则避免了引用列表的分区级信令。 如果未设置视频块语法元素,则发生引用列表的分区级信令。 如果设置了视频块语法元素,则可以对视频块的每个分区使用分区级语法元素,其中分区级语法元素各自识别参考列表中的一个和运动矢量精度 分区。
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公开(公告)号:US20110200111A1
公开(公告)日:2011-08-18
申请号:US13013715
申请日:2011-01-25
申请人: Peisong Chen , Xianglin Wang , Marta Karczewicz
发明人: Peisong Chen , Xianglin Wang , Marta Karczewicz
IPC分类号: H04N7/28
CPC分类号: H04N19/615 , H04N19/119 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/537 , H04N19/543 , H04N19/66
摘要: In one example, an apparatus includes a video encoder configured to partition a block of video data into a first partition and a second partition using a geometric motion partition line, determine a first motion vector for the first partition and a second motion vector for the second partition, encode the first motion vector based on a first motion predictor selected from motion vectors for blocks neighboring the first partition, encode the second motion vector based on a second motion predictor selected from motion vectors for blocks neighboring the second partition, wherein the blocks neighboring the second partition are determined independently of the blocks neighboring the first partition, and output the encoded first and second motion vectors. A video decoder may similarly decode the motion vectors based on determining the first and second motion predictors for the first and second partitions.
摘要翻译: 在一个示例中,一种装置包括视频编码器,其被配置为使用几何运动分割线将视频数据块分割成第一分区和第二分区,确定第一分区的第一运动矢量和第二分区的第二运动矢量 基于从与第一分区相邻的块的运动矢量中选择的第一运动预测器对第一运动矢量进行编码,基于从邻近于第二分区的块的运动矢量中选择的第二运动预测器对第二运动矢量进行编码,其中块相邻 独立于与第一分区相邻的块独立地确定第二分区,并输出编码的第一和第二运动矢量。 视频解码器可以基于确定第一和第二分区的第一和第二运动预测器来类似地解码运动矢量。
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公开(公告)号:US09848197B2
公开(公告)日:2017-12-19
申请号:US13414232
申请日:2012-03-07
申请人: Ying Chen , Liwei Guo , Peisong Chen , Xianglin Wang , Marta Karczewicz
发明人: Ying Chen , Liwei Guo , Peisong Chen , Xianglin Wang , Marta Karczewicz
IPC分类号: H04N19/122 , H04N19/186 , H04N19/176 , H04N19/96
CPC分类号: H04N19/186 , H04N19/122 , H04N19/176 , H04N19/96
摘要: Aspects of this disclosure relate to a method of coding video data. In an example, the method includes determining a first residual quadtree (RQT) depth at which to apply a first transform to luma information associated with a block of video data, wherein the RQT represents a manner in which transforms are applied to luma information and chroma information. The method also includes determining a second RQT depth at which to apply a second transform to the chroma information associated with the block of video data, wherein the second RQT depth is different than the first RQT depth. The method also includes coding the luma information at the first RQT depth and the chroma information at the second RQT depth.
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公开(公告)号:US09716920B2
公开(公告)日:2017-07-25
申请号:US13154247
申请日:2011-06-06
申请人: Ying Chen , Peisong Chen , Marta Karczewicz
发明人: Ying Chen , Peisong Chen , Marta Karczewicz
IPC分类号: H04N13/00 , H04N21/81 , H04N21/218 , H04N21/235 , H04N21/2365 , H04N21/435 , H04N21/61 , H04N21/658 , H04N21/84 , H04N19/597 , H04N19/70
CPC分类号: H04N21/816 , H04N19/597 , H04N19/70 , H04N21/21805 , H04N21/235 , H04N21/2365 , H04N21/435 , H04N21/6125 , H04N21/6581 , H04N21/84
摘要: In one example, an apparatus includes a processor configured to receive video data for two or more views of a scene, determine horizontal locations of camera perspectives for each of the two or more views, assign view identifiers to the two or more views such that the view identifiers correspond to the relative horizontal locations of the camera perspectives, form a representation comprising a subset of the two or more views, and, in response to a request from a client device, send information indicative of a maximum view identifier and a minimum view identifier for the representation to the client device.
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公开(公告)号:US09247249B2
公开(公告)日:2016-01-26
申请号:US13451204
申请日:2012-04-19
申请人: Ying Chen , Peisong Chen , Marta Karczewicz
发明人: Ying Chen , Peisong Chen , Marta Karczewicz
IPC分类号: H04N7/32 , H04N19/51 , H04N19/597 , H04N19/105 , H04N19/52 , H04N19/176 , H04N19/147 , H04N19/46 , H04N19/513
CPC分类号: H04N19/513 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/52 , H04N19/597
摘要: Aspects of this disclosure relate to a method of coding video data. In an example, the method includes identifying a first block of video data in a first temporal location from a first view, wherein the first block of video data is associated with a first temporal motion vector. The method also includes determining, when a second motion vector associated with a second block of video data comprises a temporal motion vector and the second block is from a second view, a motion vector predictor for the second motion vector based on the first temporal motion vector. The method also includes coding prediction data for the second block using the motion vector predictor.
摘要翻译: 本公开的方面涉及对视频数据进行编码的方法。 在一个示例中,该方法包括从第一视图识别第一时间位置中的视频数据的第一块,其中第一视频数据块与第一时间运动矢量相关联。 该方法还包括当与第二视频数据块相关联的第二运动矢量包括时间运动矢量并且第二块来自第二视图时,确定基于第一时间运动矢量的第二运动矢量的运动矢量预测器 。 该方法还包括使用运动矢量预测器对第二块的预测数据进行编码。
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公开(公告)号:US09020030B2
公开(公告)日:2015-04-28
申请号:US13013687
申请日:2011-01-25
申请人: Peisong Chen , Xianglin Wang , Marta Karczewicz
发明人: Peisong Chen , Xianglin Wang , Marta Karczewicz
IPC分类号: H04B1/66 , H04N19/119 , H04N19/52 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/537 , H04N19/543 , H04N5/225
CPC分类号: H04N19/615 , H04N19/119 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/537 , H04N19/543 , H04N19/66
摘要: In one example, an apparatus includes a video encoder configured to partition a block of video data into a first partition and a second partition using a geometric motion partition line, calculate a prediction value of a pixel in a transition region of the block using a filter that applies a value for at least one neighboring pixel from the first partition and a value for at least one neighboring pixel from the second partition, calculate a residual value of the pixel in the transition region of the block based on the prediction value of the pixel in the transition region, and output the residual value of the pixel. In one example, a video decoder may use a similar filter to decode an the encoded block after receiving the residual value for the encoded block, and using a definition of the geometric motion partition line.
摘要翻译: 在一个示例中,一种装置包括视频编码器,其被配置为使用几何运动分割线将视频数据块分割成第一分区和第二分区,使用滤波器计算块的过渡区域中的像素的预测值 其对来自第一分区的至少一个相邻像素应用值,并且从第二分区施加至少一个相邻像素的值,基于像素的预测值计算块的过渡区域中的像素的残留值 并且输出像素的残留值。 在一个示例中,视频解码器可以在接收到编码块的残余值之后使用类似的滤波器对编码块进行解码,并且使用几何运动分割线的定义。
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公开(公告)号:US08665959B2
公开(公告)日:2014-03-04
申请号:US12979876
申请日:2010-12-28
申请人: Peisong Chen , Marta Karczewicz , Wei-Jung Chien , Xianglin Wang
发明人: Peisong Chen , Marta Karczewicz , Wei-Jung Chien , Xianglin Wang
IPC分类号: H04N7/12
CPC分类号: H04N19/46 , H04N19/105 , H04N19/70
摘要: A video block syntax element indicates whether all of the partitions of a video block are predicted based on a same reference list and no greater than quarter-pixel accuracy is used. If the video block syntax element is set, partition-level signaling of the reference lists is avoided. If the video block syntax element is not set, partition-level signaling of the reference lists occurs. If the video block syntax element is set, partition-level syntax elements may be used for each of the partitions of the video block, wherein the partition-level syntax elements each identify one of the reference lists and motion vector accuracy for a given one of the partitions.
摘要翻译: 视频块语法元素指示基于相同的参考列表来预测视频块的所有分区,并且使用不大于四分之一像素的精度。 如果设置了视频块语法元素,则避免了引用列表的分区级信令。 如果未设置视频块语法元素,则发生引用列表的分区级信令。 如果设置了视频块语法元素,则可以对视频块的每个分区使用分区级语法元素,其中分区级语法元素各自识别参考列表中的一个和运动矢量精度 分区。
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公开(公告)号:US20130003849A1
公开(公告)日:2013-01-03
申请号:US13536218
申请日:2012-06-28
申请人: Wei-Jung Chien , Peisong Chen , Marta Karczewicz
发明人: Wei-Jung Chien , Peisong Chen , Marta Karczewicz
IPC分类号: H04N7/32
摘要: In one example, a device for coding video data includes a video coder configured to configured to code information representative of whether an absolute value of an x-component of a motion vector difference value for a current block of video data is greater than zero, code information representative of whether an absolute value of a y-component of the motion vector difference value is greater than zero, when the absolute value of the x-component is greater than zero, code information representative of the absolute value of the x-component, when the absolute value of the y-component is greater than zero, code information representative of the absolute value of the y-component, when the absolute value of the x-component is greater than zero, code a sign of the x-component, and when the absolute value of the y-component is greater than zero, code a sign of the y-component.
摘要翻译: 在一个示例中,用于编码视频数据的设备包括:视频编码器,被配置为对表示当前视频数据块的运动矢量差值的x分量的绝对值是否大于零的代码进行编码;代码 表示运动矢量差值的y分量的绝对值是否大于零的信息,当x分量的绝对值大于零时,表示x分量的绝对值的代码信息, 当y分量的绝对值大于零时,表示y分量的绝对值的代码信息,当x分量的绝对值大于零时,编码x分量的符号, 并且当y分量的绝对值大于零时,编码y分量的符号。
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