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1. 发明授权

US09807424B2 Adaptive selection of region size for identification of samples in a transition zone for overlapped block motion compensation 有权
公开(公告)号：US09807424B2
公开(公告)日：2017-10-31
申请号：US13311834
申请日：2011-12-06
申请人： Liwei Guo , Peisong Chen , Marta Karczewicz
发明人： Liwei Guo , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/32 , H04N19/86 , H04N19/159 , H04N19/176 , H04N19/117 , H04N19/127 , H04N19/17 , H04N19/80
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video encoding or decoding process, a predicted prediction block is generated for a CU. The CU may have two or more prediction units (PUs). A computing device selects a neighbor region size. After the computing device selects the neighbor region size, samples in a transition zone of the prediction block are identified. Samples associated with a first PU are in the transition zone if neighbor regions that contain the samples also contain samples associated with a second PU. Samples associated with the second PU may be in the transition zone if neighbor regions that contain the samples also contain samples associated with the first PU. The neighbor regions have the selected neighbor region size. A smoothing operation is then performed on the samples in the transition zone.

2. 发明授权

US09848197B2 Transforms in video coding 有权
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.

3. 发明申请

US20120230421A1 TRANSFORMS IN VIDEO CODING 有权
标题翻译：视频编码中的变换
公开(公告)号：US20120230421A1
公开(公告)日：2012-09-13
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： H04N7/30
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.
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，该方法包括确定将第一变换应用于与视频数据块相关联的亮度信息的第一残余四叉树（RQT）深度，其中RQT表示将变换应用于亮度信息和色度的方式信息。该方法还包括确定将第二变换应用于与视频数据块相关联的色度信息的第二RQT深度，其中第二RQT深度不同于第一RQT深度。该方法还包括以第一RQT深度编码亮度信息和在第二RQT深度对色度信息进行编码。

4. 发明申请

US20120147961A1 USE OF MOTION VECTORS IN EVALUATING GEOMETRIC PARTITIONING MODES 审中-公开
标题翻译：运动矢量在评估几何分割模式中的运用
公开(公告)号：US20120147961A1
公开(公告)日：2012-06-14
申请号：US13302539
申请日：2011-11-22
申请人： Liwei Guo , Marta Karczewicz , Peisong Chen
发明人： Liwei Guo , Marta Karczewicz , Peisong Chen
IPC分类号： H04N7/28
CPC分类号： H04N19/543 , H04N19/119 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/56 , H04N19/61
摘要： During a video encoding process, rectangular prediction units (PUs) for a coding unit (CU) are generated. Furthermore, a geometric partitioning mode is used to generate a first and a second geometric PU for the CU. The first and second geometric PUs are associated with different geometric partitions of a sample block of the CU. One of the rectangular PUs is identified as overlapping the first geometric PU. The motion vector of the identified rectangular PU is used to identify a given area of a reference frame. The given area of a reference frame is then used as a starting point of a search to identify a reference sample for the first geometric PU. A motion vector for the first geometric PU indicates a position of the reference sample relative to a position of the first geometric PU. A prediction block is generated using the motion vector for first geometric PU.
摘要翻译：在视频编码处理期间，生成用于编码单元（CU）的矩形预测单元（PU）。此外，使用几何划分模式来为CU产生第一和第二几何PU。第一和第二几何PU与CU的样本块的不同几何分区相关联。矩形PU之一被识别为与第一几何PU重叠。所识别的矩形PU的运动矢量用于识别参考帧的给定区域。然后将参考帧的给定区域用作搜索的起始点，以识别第一几何PU的参考样本。第一几何PU的运动矢量表示参考样本相对于第一几何PU的位置的位置。使用第一几何PU的运动矢量生成预测块。

5. 发明授权

US09807426B2 Applying non-square transforms to video data 有权
公开(公告)号：US09807426B2
公开(公告)日：2017-10-31
申请号：US13422828
申请日：2012-03-16
申请人： Liwei Guo , Joel Sole Rojals , Rajan Laxman Joshi , Peisong Chen , Xianglin Wang , Marta Karczewicz
发明人： Liwei Guo , Joel Sole Rojals , Rajan Laxman Joshi , Peisong Chen , Xianglin Wang , Marta Karczewicz
IPC分类号： H04N7/50 , H04N19/96 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/46 , H04N19/122
CPC分类号： H04N19/96 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In one example, a device for coding video data includes a video coder, such as a video encoder or a video decoder, that is configured to code information indicative of whether a transform unit of the video data is square or non-square, and code data of the transform unit based at least in part on whether the transform unit is square or non-square. In this manner, the video coder may utilize non-square transform units. The video coder may be configured to use non-square transform units for certain situations, such as only for chrominance or luminance components or only when a corresponding prediction unit is non-square. The video coder may further be configured to perform an entropy coding process that selects context for coding data of the transform unit based on whether the transform unit is square or non-square.

6. 发明申请

US20120177114A1 ADAPTIVELY PERFORMING SMOOTHING OPERATIONS 有权
标题翻译：轻松执行平滑操作
公开(公告)号：US20120177114A1
公开(公告)日：2012-07-12
申请号：US13311812
申请日：2011-12-06
申请人： Liwei Guo , Marta Karczewicz , Peisong Chen
发明人： Liwei Guo , Marta Karczewicz , Peisong Chen
IPC分类号： H04N7/32
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video coding process, a prediction block is generated for a CU. The CU has two or more prediction units. A computing device determines, based on sizes of one or more of the prediction units, whether to perform a smoothing operation on samples in a transition zone of the prediction block. The transition zone is located at a boundary between samples of the prediction block associated with different prediction units. If the computing device makes the determination to perform the smoothing operation, the smoothing operation is performed to smooth samples of the prediction block in the transition zone.
摘要翻译：在视频编码处理期间，为CU生成预测块。 CU具有两个或更多个预测单元。计算装置基于一个或多个预测单元的大小来确定是否对预测块的过渡区域中的样本执行平滑处理。过渡区域位于与不同预测单元相关联的预测块的采样之间的边界。如果计算装置做出进行平滑处理的判定，则进行平滑化处理，以平滑过渡区域中的预测块的采样。

7. 发明授权

US09071851B2 Adaptively performing smoothing operations 有权
标题翻译：自适应执行平滑操作
公开(公告)号：US09071851B2
公开(公告)日：2015-06-30
申请号：US13311812
申请日：2011-12-06
申请人： Liwei Guo , Marta Karczewicz , Peisong Chen
发明人： Liwei Guo , Marta Karczewicz , Peisong Chen
IPC分类号： H04N7/32 , H04N19/86 , H04N19/159 , H04N19/176 , H04N19/117 , H04N19/127 , H04N19/17 , H04N19/80 , G06K9/36
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video coding process, a prediction block is generated for a CU. The CU has two or more prediction units. A computing device determines, based on sizes of one or more of the prediction units, whether to perform a smoothing operation on samples in a transition zone of the prediction block. The transition zone is located at a boundary between samples of the prediction block associated with different prediction units. If the computing device makes the determination to perform the smoothing operation, the smoothing operation is performed to smooth samples of the prediction block in the transition zone.
摘要翻译：在视频编码处理期间，为CU生成预测块。 CU具有两个或更多个预测单元。计算装置基于一个或多个预测单元的大小来确定是否对预测块的过渡区域中的样本执行平滑处理。过渡区域位于与不同预测单元相关联的预测块的采样之间的边界。如果计算装置做出进行平滑处理的判定，则进行平滑化处理，以平滑过渡区域中的预测块的采样。

8. 发明申请

US20130003824A1 APPLYING NON-SQUARE TRANSFORMS TO VIDEO DATA 有权
标题翻译：将非正方形变换应用于视频数据
公开(公告)号：US20130003824A1
公开(公告)日：2013-01-03
申请号：US13422828
申请日：2012-03-16
申请人： Liwei Guo , Joel Sole Rojals , Rajan Laxman Joshi , Peisong Chen , Xianglin Wang , Marta Karczewicz
发明人： Liwei Guo , Joel Sole Rojals , Rajan Laxman Joshi , Peisong Chen , Xianglin Wang , Marta Karczewicz
IPC分类号： H04N7/30 , H04N7/32 , H04N11/02
CPC分类号： H04N19/96 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In one example, a device for coding video data includes a video coder, such as a video encoder or a video decoder, that is configured to code information indicative of whether a transform unit of the video data is square or non-square, and code data of the transform unit based at least in part on whether the transform unit is square or non-square. In this manner, the video coder may utilize non-square transform units. The video coder may be configured to use non-square transform units for certain situations, such as only for chrominance or luminance components or only when a corresponding prediction unit is non-square. The video coder may further be configured to perform an entropy coding process that selects context for coding data of the transform unit based on whether the transform unit is square or non-square.
摘要翻译：在一个示例中，用于编码视频数据的设备包括诸如视频编码器或视频解码器的视频编码器，其被配置为对指示视频数据的变换单元是正方形还是非正方形的信息进行编码，以及代码所述变换单元的数据至少部分地基于所述变换单元是平方还是非正方形。以这种方式，视频编码器可以利用非正方形变换单元。视频编码器可以被配置为在诸如仅用于色度或亮度分量的某些情况下使用非平方变换单元，或者仅当对应的预测单元是非正方形时才使用。视频编码器还可以被配置为执行熵编码处理，其基于变换单元是正方形还是非正方形来选择用于对变换单元的数据进行编码的上下文。

9. 发明申请

US20120177120A1 IDENTIFICATION OF SAMPLES IN A TRANSITION ZONE 有权
标题翻译：标示过渡区样本
公开(公告)号：US20120177120A1
公开(公告)日：2012-07-12
申请号：US13311834
申请日：2011-12-06
申请人： Liwei Guo , Peisong Chen , Marta Karczewicz
发明人： Liwei Guo , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/32
CPC分类号： H04N19/86 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/80
摘要： During a video encoding or decoding process, a predicted prediction block is generated for a CU. The CU may have two or more prediction units (PUs). A computing device selects a neighbor region size. After the computing device selects the neighbor region size, samples in a transition zone of the prediction block are identified. Samples associated with a first PU are in the transition zone if neighbor regions that contain the samples also contain samples associated with a second PU. Samples associated with the second PU may be in the transition zone if neighbor regions that contain the samples also contain samples associated with the first PU. The neighbor regions have the selected neighbor region size. A smoothing operation is then performed on the samples in the transition zone.
摘要翻译：在视频编码或解码过程中，为CU生成预测预测块。 CU可以具有两个或更多个预测单元（PU）。计算设备选择相邻区域大小。在计算设备选择相邻区域大小之后，识别预测块的过渡区域中的采样。与第一PU相关联的样本处于过渡区域，如果包含样本的相邻区域也包含与第二PU相关联的样本。与第二PU相关联的样本可以在过渡区域中，如果包含样本的相邻区域也包含与第一PU相关联的样本。相邻区域具有所选择的相邻区域大小。然后对过渡区域中的样本进行平滑处理。

10. 发明授权

US09699456B2 Buffering prediction data in video coding 有权
公开(公告)号：US09699456B2
公开(公告)日：2017-07-04
申请号：US13550377
申请日：2012-07-16
申请人： Wei-Jung Chien , Yunfei Zheng , Xianglin Wang , Marta Karczewicz , Liwei Guo
发明人： Wei-Jung Chien , Yunfei Zheng , Xianglin Wang , Marta Karczewicz , Liwei Guo
IPC分类号： H04N7/26 , H04N7/32 , H04N19/11 , H04N19/159 , H04N19/176 , H04N19/147 , H04N19/46 , H04N19/51 , H04N19/593
CPC分类号： H04N19/11 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/593
摘要： In an example, aspects of this disclosure relate to a method of coding video data that generally includes determining prediction information for a block of video data, where the block is included in a coded unit of video data and positioned below a top row of above-neighboring blocks in the coded unit, and where the prediction information for the block is based on prediction information from one or more other blocks in the coded unit but not based on prediction information from any of the top row of blocks in the coded unit. The method also generally includes coding the block based on the determined prediction information.

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