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1. 发明授权

US09854275B2 Quantization in video coding 有权
公开(公告)号：US09854275B2
公开(公告)日：2017-12-26
申请号：US13531106
申请日：2012-06-22
申请人： Rajan Laxman Joshi , Xianglin Wang , Geert Van der Auwera , Marta Karczewicz
发明人： Rajan Laxman Joshi , Xianglin Wang , Geert Van der Auwera , Marta Karczewicz
IPC分类号： H04N7/26 , H04N19/90 , H04N19/147 , H04N19/172 , H04N19/46 , H04N19/61 , H04N19/124 , H04N19/126 , H04N19/174
CPC分类号： H04N19/90 , H04N19/124 , H04N19/126 , H04N19/147 , H04N19/172 , H04N19/174 , H04N19/46 , H04N19/61
摘要： In an example, aspects of this disclosure relate to a method of coding video data that includes determining a quantization parameter (QP) for coding residual video data, where the QP is indexed to a quantizer step size. The method also includes determining a quantization scaling value for scaling the quantizer step size, and applying the quantization scaling value scaling to the quantizer step size. The method also includes coding the residual video data using the scaled quantizer step size.

2. 发明申请

US20130051457A1 QUANTIZATION IN VIDEO CODING 有权
标题翻译：视频编码中的量化
公开(公告)号：US20130051457A1
公开(公告)日：2013-02-28
申请号：US13531106
申请日：2012-06-22
申请人： Rajan Laxman Joshi , Xianglin Wang , Geert Van der Auwera , Marta Karczewicz
发明人： Rajan Laxman Joshi , Xianglin Wang , Geert Van der Auwera , Marta Karczewicz
IPC分类号： H04N7/26
CPC分类号： H04N19/90 , H04N19/124 , H04N19/126 , H04N19/147 , H04N19/172 , H04N19/174 , H04N19/46 , H04N19/61
摘要： In an example, aspects of this disclosure relate to a method of coding video data that includes determining a quantization parameter (QP) for coding residual video data, where the QP is indexed to a quantizer step size. The method also includes determining a quantization scaling value for scaling the quantizer step size, and applying the quantization scaling value scaling to the quantizer step size. The method also includes coding the residual video data using the scaled quantizer step size.
摘要翻译：在一个示例中，本公开的方面涉及一种对视频数据进行编码的方法，该方法包括确定用于对剩余视频数据进行编码的量化参数（QP），其中QP被索引到量化器步长。该方法还包括确定用于缩放量化器步长的量化缩放值，以及将量化缩放值缩放应用于量化器步长。该方法还包括使用缩放的量化器步长对剩余视频数据进行编码。

3. 发明授权

US09161046B2 Determining quantization parameters for deblocking filtering for video coding 有权
标题翻译：确定用于视频编码的去块滤波的量化参数
公开(公告)号：US09161046B2
公开(公告)日：2015-10-13
申请号：US13495821
申请日：2012-06-13
申请人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
发明人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
IPC分类号： H04N19/196 , H04N19/14 , H04N19/176 , H04N19/117 , H04N19/157 , H04N19/86 , H04N19/61
CPC分类号： H04N19/198 , H04N19/117 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/61 , H04N19/86
摘要： A video coder determines a deblocking quantization parameter (QP) value based on at least one of a first QP value and a second QP value. Subsequently, the video coder applies a deblocking filter that is based on the deblocking filter to an edge associated with a first video block. The edge occurs at a boundary between the first video block and a second video block. The first video block is associated with a current coding unit (CU) and the second video block is associated with a neighboring CU. The current CU is included in a first quantization group and the neighboring CU is included in a second quantization group. The first QP value is defined for the first quantization group. The second QP value is defined for the second quantization group.
摘要翻译：视频编码器基于第一QP值和第二QP值中的至少一个来确定解块量化参数（QP）值。随后，视频编码器将基于去块滤波器的去块滤波器应用于与第一视频块相关联的边缘。边缘出现在第一视频块和第二视频块之间的边界处。第一视频块与当前编码单元（CU）相关联，并且第二视频块与相邻CU相关联。当前CU包括在第一量化组中，并且相邻CU包括在第二量化组中。为第一量化组定义第一QP值。为第二量化组定义第二QP值。

4. 发明授权

US09167269B2 Determining boundary strength values for deblocking filtering for video coding 有权
标题翻译：确定视频编码解块滤波的边界强度值
公开(公告)号：US09167269B2
公开(公告)日：2015-10-20
申请号：US13532610
申请日：2012-06-25
申请人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
发明人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04 , H04N19/82 , H04N19/117 , H04N19/136 , H04N19/186 , H04N19/18
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/18 , H04N19/186
摘要： A video coder associates a first boundary strength value with an edge in response to determining that a first video block or a second video block is associated with an intra-predicted coding unit (CU), where the edge occurs at a boundary between the first video block and the second video block. The video coder may associate a second or a third boundary strength value with the edge when neither the first video block nor the second video block is associated with an intra-predicted CU. The video coder may apply one or more deblocking filters to samples associated with the edge when the edge is associated with the first boundary strength value or the second boundary strength value. The third boundary strength value indicates that the deblocking filters are turned off for the samples associated with the edge.
摘要翻译：响应于确定第一视频块或第二视频块与帧内预测编码单元（CU）相关联，视频编码器将第一边界强度值与边缘相关联，其中边缘出现在第一视频块和第二个视频块。当第一视频块和第二视频块都不与帧内预测CU相关联时，视频编码器可以将第二或第三边界强度值与边缘相关联。当边缘与第一边界强度值或第二边界强度值相关联时，视频编码器可以对与边缘相关联的样本应用一个或多个去块滤波器。第三边界强度值表示对于与边缘相关联的样本，去块滤波器被关闭。

5. 发明申请

US20130101024A1 DETERMINING BOUNDARY STRENGTH VALUES FOR DEBLOCKING FILTERING FOR VIDEO CODING 有权
标题翻译：确定用于视频编码的阻塞滤波的边界强度值
公开(公告)号：US20130101024A1
公开(公告)日：2013-04-25
申请号：US13532610
申请日：2012-06-25
申请人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
发明人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
IPC分类号： H04N7/32 , H04N11/02 , H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/18 , H04N19/186
摘要： A video coder associates a first boundary strength value with an edge in response to determining that a first video block or a second video block is associated with an intra-predicted coding unit (CU), where the edge occurs at a boundary between the first video block and the second video block. The video coder may associate a second or a third boundary strength value with the edge when neither the first video block nor the second video block is associated with an intra-predicted CU. The video coder may apply one or more deblocking filters to samples associated with the edge when the edge is associated with the first boundary strength value or the second boundary strength value. The third boundary strength value indicates that the deblocking filters are turned off for the samples associated with the edge.
摘要翻译：响应于确定第一视频块或第二视频块与帧内预测编码单元（CU）相关联，视频编码器将第一边界强度值与边缘相关联，其中边缘出现在第一视频块和第二个视频块。当第一视频块和第二视频块都不与帧内预测CU相关联时，视频编码器可以将第二或第三边界强度值与边缘相关联。当边缘与第一边界强度值或第二边界强度值相关联时，视频编码器可以对与边缘相关联的样本应用一个或多个去块滤波器。第三边界强度值表示对于与边缘相关联的样本，去块滤波器被关闭。

6. 发明申请

US20130101031A1 DETERMINING QUANTIZATION PARAMETERS FOR DEBLOCKING FILTERING FOR VIDEO CODING 有权
标题翻译：确定用于视频编码的阻塞滤波的量化参数
公开(公告)号：US20130101031A1
公开(公告)日：2013-04-25
申请号：US13495821
申请日：2012-06-13
申请人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
发明人： Geert Van der Auwera , Marta Karczewicz , Xianglin Wang
IPC分类号： H04N7/26 , H04N7/32
CPC分类号： H04N19/198 , H04N19/117 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/61 , H04N19/86
摘要： A video coder determines a deblocking quantization parameter (QP) value based on at least one of a first QP value and a second QP value. Subsequently, the video coder applies a deblocking filter that is based on the deblocking filter to an edge associated with a first video block. The edge occurs at a boundary between the first video block and a second video block. The first video block is associated with a current coding unit (CU) and the second video block is associated with a neighboring CU. The current CU is included in a first quantization group and the neighboring CU is included in a second quantization group. The first QP value is defined for the first quantization group. The second QP value is defined for the second quantization group.
摘要翻译：视频编码器基于第一QP值和第二QP值中的至少一个来确定解块量化参数（QP）值。随后，视频编码器将基于去块滤波器的去块滤波器应用于与第一视频块相关联的边缘。边缘出现在第一视频块和第二视频块之间的边界处。第一视频块与当前编码单元（CU）相关联，并且第二视频块与相邻CU相关联。当前CU包括在第一量化组中，并且相邻CU包括在第二量化组中。为第一量化组定义第一QP值。为第二量化组定义第二QP值。

7. 发明申请

US20130044809A1 APPLYING PARTITION-BASED FILTERS 有权
标题翻译：应用基于分区的过滤器
公开(公告)号：US20130044809A1
公开(公告)日：2013-02-21
申请号：US13585657
申请日：2012-08-14
申请人： In Suk Chong , Geert Van der Auwera , Marta Karczewicz
发明人： In Suk Chong , Geert Van der Auwera , Marta Karczewicz
IPC分类号： H04N7/26 , H04N7/30
CPC分类号： H04N19/649 , H04N19/117 , H04N19/167 , H04N19/182 , H04N19/42 , H04N19/60 , H04N19/647 , H04N19/82 , H04N19/85 , H04N19/86 , H04N19/96
摘要： In general, techniques are described for applying partition-based filters when coding video data. A device comprising at least one processor may be configured to implement the techniques. The processor selects a filter to apply near a boundary of a first portion of the video data and determines at least one of the plurality of filter coefficients of the selected filter for which the video data will not be available to be filtered. Based on the determination, the processor determines a partial filter that does not include the at least one of the plurality of filter coefficients for which the video data will not be available to be filtered. The processor renormalizes the plurality of filter coefficients included within the partial filter and applies the renormalized partial filter near the boundary of the first portion of the video data to generate a filtered first portion of the video data.
摘要翻译：一般来说，描述了在编码视频数据时应用基于分区的滤波器的技术。包括至少一个处理器的设备可以被配置为实现这些技术。处理器选择滤波器以在视频数据的第一部分的边界附近应用，并且确定所选择的滤波器的多个滤波器系数中的至少一个，视频数据将不可用于其被滤波。基于该确定，处理器确定不包括视频数据将不能被滤波的多个滤波器系数中的至少一个的部分滤波器。处理器对包括在部分滤波器内的多个滤波器系数进行重新归一化，并且在视频数据的第一部分的边界附近应用重新归一化的部分滤波器，以生成经过滤波的视频数据的第一部分。

8. 发明授权

US09338476B2 Filtering blockiness artifacts for video coding 有权
标题翻译：过滤视频编码的块效应伪影
公开(公告)号：US09338476B2
公开(公告)日：2016-05-10
申请号：US13466831
申请日：2012-05-08
申请人： Geert Van der Auwera , Marta Karczewicz
发明人： Geert Van der Auwera , Marta Karczewicz
IPC分类号： H04N7/12 , H04N19/82 , H04N19/159 , H04N19/176 , H04N19/117
CPC分类号： H04N19/82 , H04N19/117 , H04N19/159 , H04N19/176
摘要： In one example, an apparatus for coding video data includes a video coder configured to determine a first prediction mode for a first block of video data and a second prediction mode for a second block of video data, wherein the first block and the second block share a common edge, decode the first block using the first prediction mode and the second block using the second prediction mode, and determine whether to deblock the common edge between the first block and the second block based at least in part on whether at least one of the first prediction mode and the second prediction mode comprises short distance intra-prediction (SDIP).
摘要翻译：在一个示例中，用于编码视频数据的装置包括视频编码器，被配置为确定第一视频数据块的第一预测模式和用于第二视频数据块的第二预测模式，其中第一块和第二块共享公共边缘，使用第一预测模式对第一块进行解码，并且使用第二预测模式对第二块进行解码，并且至少部分地基于是否至少部分地基于第一块和第二块之间的至少一个来确定是否去除第一块和第二块之间的公共边缘第一预测模式和第二预测模式包括短距离帧内预测（SDIP）。

9. 发明申请

US20130022107A1 DEBLOCKING OF NON-SQUARE BLOCKS FOR VIDEO CODING 有权
标题翻译：用于视频编码的非正方形块的解锁
公开(公告)号：US20130022107A1
公开(公告)日：2013-01-24
申请号：US13482560
申请日：2012-05-29
申请人： Geert Van der Auwera , Marta Karczewicz
发明人： Geert Van der Auwera , Marta Karczewicz
IPC分类号： H04N7/26 , H04N7/30 , H04N7/34
CPC分类号： H04N19/00133 , H04N19/117 , H04N19/134 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/82 , H04N19/86
摘要： In one example, a video coding device is configured to decode a first block of video data and a second block of video data, wherein the first block and the second block share a common edge, and determine whether to deblock the common edge between the first block and the second block based at least in part on whether at least one of the first block and the second block is non-square. Non-square blocks of video data may comprise, for example, partitions (e.g., prediction units or transform units) resulting from asymmetric motion partitioning, non-square transforms for symmetric motion partitioning, or other quadtree transform splitting procedures. The video coding device may apply adapted deblocking decision functions and/or adapted deblocking filters to the common edge when either or both of the blocks is non-square.
摘要翻译：在一个示例中，视频编码设备被配置为对视频数据的第一块和第二视频数据块进行解码，其中第一块和第二块共享公共边，并且确定是否去除第一块和第二块至少部分地基于第一块和第二块中的至少一个是否是非正方形。视频数据的非正方形块可以包括例如由不对称运动划分产生的分区（例如，预测单元或变换单元），用于对称运动划分的非方变换或其他四叉树变换分割程序。视频编码装置可以在块中的一个或两个是非正方形时将适用的解块决定功能和/或适配的去块滤波器应用于公共边缘。

10. 发明申请

US20120287994A1 FILTERING BLOCKINESS ARTIFACTS FOR VIDEO CODING 有权
标题翻译：过滤用于视频编码的阻塞装置
公开(公告)号：US20120287994A1
公开(公告)日：2012-11-15
申请号：US13466831
申请日：2012-05-08
申请人： Geert Van der Auwera , Marta Karczewicz
发明人： Geert Van der Auwera , Marta Karczewicz
IPC分类号： H04N7/32
CPC分类号： H04N19/82 , H04N19/117 , H04N19/159 , H04N19/176
摘要： In one example, an apparatus for coding video data includes a video coder configured to determine a first prediction mode for a first block of video data and a second prediction mode for a second block of video data, wherein the first block and the second block share a common edge, decode the first block using the first prediction mode and the second block using the second prediction mode, and determine whether to deblock the common edge between the first block and the second block based at least in part on whether at least one of the first prediction mode and the second prediction mode comprises short distance intra-prediction (SDIP).
摘要翻译：在一个示例中，用于编码视频数据的装置包括视频编码器，被配置为确定第一视频数据块的第一预测模式和用于第二视频数据块的第二预测模式，其中第一块和第二块共享公共边缘，使用第一预测模式对第一块进行解码，并且使用第二预测模式对第二块进行解码，并且至少部分地基于是否至少部分地基于第一块和第二块之间的至少一个来确定是否去除第一块和第二块之间的公共边缘第一预测模式和第二预测模式包括短距离帧内预测（SDIP）。

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