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1. 发明授权

US09497472B2 Parallel context calculation in video coding 有权
标题翻译：视频编码中的并行上下文计算
公开(公告)号：US09497472B2
公开(公告)日：2016-11-15
申请号：US13294869
申请日：2011-11-11
申请人： Muhammed Zeyd Coban , Yunfei Zheng , Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
发明人： Muhammed Zeyd Coban , Yunfei Zheng , Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N19/436 , H04N19/176 , H04N19/196 , H04N19/13 , H04N19/134 , H04N19/129 , H04N19/102 , H04N19/463 , H04N19/18
CPC分类号： H04N19/436 , H04N19/102 , H04N19/129 , H04N19/13 , H04N19/134 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
摘要： In one example, a method for coding video data includes identifying a scan path for scanning significance information associated with a quantized transform coefficient. The method also includes determining a context support neighborhood for entropy coding the significance information associated with the quantized transform coefficient, wherein the context support neighborhood excludes one or more context support elements that are located in the scan path. The method also includes coding the significance information using the modified context support neighborhood.
摘要翻译：在一个示例中，用于编码视频数据的方法包括识别用于扫描与量化变换系数相关联的有效信息的扫描路径。该方法还包括确定用于熵编码与量化变换系数相关联的重要性信息的上下文支持邻域，其中上下文支持邻域排除位于扫描路径中的一个或多个上下文支持元素。该方法还包括使用修改的上下文支持邻域对重要性信息进行编码。

2. 发明授权

US09049444B2 Mode dependent scanning of coefficients of a block of video data 有权
标题翻译：视频数据块的系数的模式相关扫描
公开(公告)号：US09049444B2
公开(公告)日：2015-06-02
申请号：US13179321
申请日：2011-07-08
申请人： Yunfei Zheng , Muhammed Zeyd Coban , Joel Sole Rojals , Marta Karczewicz
发明人： Yunfei Zheng , Muhammed Zeyd Coban , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04B1/00 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/196 , H04N19/134 , H04N19/129 , H04N19/146
CPC分类号： H04N19/157 , H04N19/129 , H04N19/134 , H04N19/146 , H04N19/176 , H04N19/196 , H04N19/46
摘要： This disclosure describes apparatuses and methods of encoding coefficients associated with a block of video data. In one example, a method may comprise selecting a scan order for the coefficients based on an intra coding mode used to predict the block of video data and a transform block size used in transforming the block of video data, and generating a syntax element to communicate the selected scan order for the block of video data.
摘要翻译：本公开描述了与视频数据块相关联的编码系数的装置和方法。在一个示例中，方法可以包括基于用于预测视频数据块的帧内编码模式和用于变换视频数据块的变换块大小，选择用于系数的扫描顺序，以及生成用于通信的语法元素所选择的视频数据块的扫描顺序。

3. 发明申请

US20120195378A1 PIXEL LEVEL ADAPTIVE INTRA-SMOOTHING 有权
标题翻译：像素水平自适应平滑
公开(公告)号：US20120195378A1
公开(公告)日：2012-08-02
申请号：US13267762
申请日：2011-10-06
申请人： Yunfei Zheng , Muhammed Zeyd Coban , Marta Karczewicz
发明人： Yunfei Zheng , Muhammed Zeyd Coban , Marta Karczewicz
IPC分类号： H04N7/32
CPC分类号： H04N19/85 , H04N19/105 , H04N19/117 , H04N19/136 , H04N19/182 , H04N19/593 , H04N19/80
摘要： This disclosure describes intra-smoothing techniques for intra-coding of video data. In one example, a video encoder is configured to determine a plurality of prediction samples for intra-predictive coding of a block to be coded in a video frame, calculate a local statistic for a first prediction sample of the prediction samples, select a filter from a plurality of filters based on the local statistic, and apply the selected filter to the first prediction sample. The video encoder may also be configured to calculate at least one local statistic for each prediction sample of the prediction samples, select a filter from a plurality of different filters based on the at least one local statistic for each prediction sample, and apply each selected filter to the corresponding prediction sample to generate the filtered version of the prediction sample. Embodiments further include video decoders and method of decoding encoded video signals.
摘要翻译：本公开描述了用于视频数据的帧内编码的帧内平滑技术。在一个示例中，视频编码器被配置为确定用于在视频帧中要编码的块的预测编码的多个预测样本，计算预测样本的第一预测样本的局部统计量，从基于所述局部统计量的多个过滤器，并将所选择的过滤器应用于所述第一预测样本。视频编码器还可以被配置为针对预测样本的每个预测样本计算至少一个局部统计量，基于每个预测样本的至少一个局部统计量从多个不同的滤波器中选择滤波器，并且应用每个选择的滤波器到相应的预测样本以生成预测样本的滤波版本。实施例还包括解码编码视频信号的视频解码器和方法。

4. 发明申请

US20120163456A1 USING A MOST PROBABLE SCANNING ORDER TO EFFICIENTLY CODE SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING 审中-公开
标题翻译：使用最可能的扫描命令有效地为视频编码中的视频块进行扫描订单信息
公开(公告)号：US20120163456A1
公开(公告)日：2012-06-28
申请号：US13332054
申请日：2011-12-20
申请人： Muhammed Zeyd Coban , Yunfei Zheng , Joel Sole Rojals , Marta Karczewicz
发明人： Muhammed Zeyd Coban , Yunfei Zheng , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N7/32
CPC分类号： H04N19/157 , H04N19/129 , H04N19/13 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/70
摘要： In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, the apparatus comprising a video coder configured to code information that identifies a scanning order associated with the block, wherein to code the information that identifies the scanning order associated with the block, the video coder is configured to determine a most probable scanning order for the block, and code an indication of whether the scanning order associated with the block is the most probable scanning order. In another example, to code the information that identifies the scanning order associated with the block, the video coder is further configured to, in the event the scanning order associated with the block is not the most probable scanning order, code an indication of the scanning order associated with the block.
摘要翻译：在一个示例中，公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置，该装置包括视频编码器，该视频编码器被配置为对与块相关联的扫描顺序进行编码的信息，其中，识别与块相关联的扫描顺序，视频编码器被配置为确定块的最可能的扫描顺序，并且编码与块相关联的扫描顺序是否是最可能的扫描顺序的指示。在另一示例中，为了对识别与该块相关联的扫描顺序的信息进行编码，视频编码器还被配置为在与该块相关联的扫描顺序不是最可能的扫描顺序的情况下，编码扫描的指示与块相关联的顺序。

5. 发明申请

US20120163455A1 MODE DEPENDENT SCANNING OF COEFFICIENTS OF A BLOCK OF VIDEO DATA 有权
标题翻译：视频数据块的系数的模式相关扫描
公开(公告)号：US20120163455A1
公开(公告)日：2012-06-28
申请号：US13179321
申请日：2011-07-08
申请人： Yunfei Zheng , Muhammed Zeyd Coban , Joel Sole Rojals , Marta Karczewicz
发明人： Yunfei Zheng , Muhammed Zeyd Coban , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N7/32
CPC分类号： H04N19/157 , H04N19/129 , H04N19/134 , H04N19/146 , H04N19/176 , H04N19/196 , H04N19/46
摘要： This disclosure describes apparatuses and methods of encoding coefficients associated with a block of video data. In one example, a method may comprise selecting a scan order for the coefficients based on an intra coding mode used to predict the block of video data and a transform block size used in transforming the block of video data, and generating a syntax element to communicate the selected scan order for the block of video data.
摘要翻译：本公开描述了与视频数据块相关联的编码系数的装置和方法。在一个示例中，方法可以包括基于用于预测视频数据块的帧内编码模式和用于变换视频数据块的变换块大小，选择用于系数的扫描顺序，以及生成用于通信的语法元素所选择的视频数据块的扫描顺序。

6. 发明申请

US20120121011A1 PARALLEL CONTEXT CALCULATION IN VIDEO CODING 有权
标题翻译：并行计算在视频编码
公开(公告)号：US20120121011A1
公开(公告)日：2012-05-17
申请号：US13294869
申请日：2011-11-11
申请人： Muhammed Zeyd Coban , Yunfei Zheng , Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
发明人： Muhammed Zeyd Coban , Yunfei Zheng , Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N7/30
CPC分类号： H04N19/436 , H04N19/102 , H04N19/129 , H04N19/13 , H04N19/134 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
摘要： In one example, a method for coding video data includes identifying a scan path for scanning significance information associated with a quantized transform coefficient. The method also includes determining a context support neighborhood for entropy coding the significance information associated with the quantized transform coefficient, wherein the context support neighborhood excludes one or more context support elements that are located in the scan path. The method also includes coding the significance information using the modified context support neighborhood.
摘要翻译：在一个示例中，用于编码视频数据的方法包括识别用于扫描与量化变换系数相关联的有效信息的扫描路径。该方法还包括确定用于熵编码与量化变换系数相关联的重要性信息的上下文支持邻域，其中上下文支持邻域排除位于扫描路径中的一个或多个上下文支持元素。该方法还包括使用修改的上下文支持邻域对重要性信息进行编码。

7. 发明申请

US20120170649A1 VIDEO CODING USING MAPPED TRANSFORMS AND SCANNING MODES 审中-公开
标题翻译：使用映射变换和扫描模式进行视频编码
公开(公告)号：US20120170649A1
公开(公告)日：2012-07-05
申请号：US13336682
申请日：2011-12-23
申请人： Peisong Chen , Yunfei Zheng , Rajan Laxman Joshi , Muhammed Zeyd Coban , Marta Karczewicz
发明人： Peisong Chen , Yunfei Zheng , Rajan Laxman Joshi , Muhammed Zeyd Coban , Marta Karczewicz
IPC分类号： H04N7/50 , H04N7/30
CPC分类号： H04N19/60 , H04N19/122 , H04N19/129 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/46
摘要： A video encoder may transform residual data by using a transform selected from a group of transforms. The transform is applied to the residual data to create a two-dimensional array of transform coefficients. A scanning mode is selected to scan the transform coefficients in the two-dimensional array into a one-dimensional array of transform coefficients. The combination of transform and scanning mode may be selected from a subset of combinations that is based on an intra-prediction mode. The scanning mode may also be selected based on the transform used to create the two-dimensional array. The transforms and/or scanning modes used may be signaled to a video decoder.
摘要翻译：视频编码器可以通过使用从一组变换中选择的变换来变换残差数据。将变换应用于残差数据以创建变换系数的二维阵列。选择扫描模式以将二维阵列中的变换系数扫描成变换系数的一维阵列。可以从基于帧内预测模式的组合的子集中选择变换和扫描模式的组合。也可以基于用于创建二维阵列的变换来选择扫描模式。所使用的变换和/或扫描模式可以被通知给视频解码器。

8. 发明申请

US20120163448A1 CODING THE POSITION OF A LAST SIGNIFICANT COEFFICIENT OF A VIDEO BLOCK IN VIDEO CODING 审中-公开
标题翻译：编码视频编码中视频块的最新重要系数的位置
公开(公告)号：US20120163448A1
公开(公告)日：2012-06-28
申请号：US13328949
申请日：2011-12-16
申请人： Yunfei Zheng , Muhammed Zeyd Coban , Joel Sole Rojals , Marta Karczewicz
发明人： Yunfei Zheng , Muhammed Zeyd Coban , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N7/26
CPC分类号： H04N19/00 , H03M7/4018 , H04N19/61
摘要： In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, wherein the apparatus includes a video coder configured to code information that identifies a position of a last non-zero coefficient within the block according to a scanning order associated with the block, wherein to code the information, the video coder is configured to perform a context adaptive entropy coding process that includes the video coder applying a context model based on at least three contexts, wherein the at least three contexts include a size associated with the block, a position of a given one of the coefficients within the block according to the scanning order, and the scanning order.
摘要翻译：在一个示例中，公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置，其中该装置包括视频编码器，该视频编码器被配置为对该块内的最后一个非零系数的位置进行编码的信息，与所述块相关联的扫描顺序，其中为了对所述信息进行编码，所述视频编码器被配置为执行上下文自适应熵编码处理，所述上下文自适应熵编码处理包括基于至少三个上下文应用上下文模型的视频编码器，其中所述至少三个上下文包括与块相关联的大小，根据扫描顺序的块内的给定一个系数的位置和扫描顺序。

9. 发明授权

US09042440B2 Coding the position of a last significant coefficient within a video block based on a scanning order for the block in video coding 有权
公开(公告)号：US09042440B2
公开(公告)日：2015-05-26
申请号：US13303015
申请日：2011-11-22
申请人： Joel Sole Rojals , Muhammed Zeyd Coban , Yunfei Zheng , Rajan Laxman Joshi , Marta Karczewicz
发明人： Joel Sole Rojals , Muhammed Zeyd Coban , Yunfei Zheng , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N19/13 , H04N19/91 , H03M7/40 , H03M7/30 , H04N19/176 , H04N19/70 , H04N19/61 , H04N19/436
CPC分类号： H04N19/13 , H03M7/30 , H03M7/40 , H03M7/4018 , H03M7/6035 , H04N19/176 , H04N19/436 , H04N19/61 , H04N19/70 , H04N19/91
摘要： In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, wherein the apparatus includes a video coder configured to code x- and y-coordinates that indicate a position of a last non-zero coefficient within the block according to a scanning order associated with the block when the scanning order comprises a first scanning order, and code interchanged x- and y-coordinates that indicate the position of the last non-zero coefficient within the block according to the scanning order when the scanning order comprises a second scanning order, wherein the second scanning order is different than the first scanning order.

10. 发明授权

US09008175B2 Intra smoothing filter for video coding 有权
标题翻译：内部平滑滤波器用于视频编码
公开(公告)号：US09008175B2
公开(公告)日：2015-04-14
申请号：US13248968
申请日：2011-09-29
申请人： Geert Van Der Auwera , Xianglin Wang , Muhammed Zeyd Coban , Marta Karczewicz , Yunfei Zheng
发明人： Geert Van Der Auwera , Xianglin Wang , Muhammed Zeyd Coban , Marta Karczewicz , Yunfei Zheng
IPC分类号： H04N7/015 , H04N19/85 , H04N19/176 , H04N19/147 , H04N19/46 , H04N19/593 , H04N19/117 , H04N19/157 , H04N19/82
CPC分类号： H04N19/85 , H04N19/117 , H04N19/147 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/82
摘要： This disclosure relates to techniques for reducing the amount of additional data encoded with a block encoded using intra-predictive coding. Particularly, the techniques provide apparatus and methods of applying a smoothing filter to prediction samples used in intra-predictive coding. For example, in fixed mode-dependent intra-predictive coding, a video encoder may determine the type of smoothing filter applied to prediction samples based on block size and intra-prediction mode combination associated with the current block, where the combination is used to look up a filter in a first filter table. In adaptive mode-dependent intra-predictive coding, the encoder uses two filters, one from the first filter table and another from a second filter table, applies both filters, and determines which yields better results. When the second filter table filter yields better results, the encoder encodes a filtering indication. When a filter from the first filter table is used, no filtering indication is encoded.
摘要翻译：本公开涉及用于减少使用内部预测编码编码的块编码的附加数据的量的技术。特别地，这些技术提供了将平滑滤波器应用于在帧内预测编码中使用的预测样本的装置和方法。例如，在固定模式相关的帧内预测编码中，视频编码器可以基于与当前块相关联的块大小和帧内预测模式组合来确定应用于预测样本的平滑滤波器的类型，其中组合被用于查找在第一个过滤器表中添加一个过滤器。在自适应模式相关的帧内预测编码中，编码器使用两个滤波器，一个来自第一个滤波器表，另一个来自第二个滤波器表，两个滤波器都应用两个滤波器，并确定哪个产生更好的结果。当第二滤波器表滤波器产生更好的结果时，编码器对滤波指示进行编码。当使用来自第一滤波器表的滤波器时，不对滤波指示进行编码。

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