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公开(公告)号：US10298939B2
公开(公告)日：2019-05-21
申请号：US13529508
申请日：2012-06-21
IPC分类号： H04N7/40 , H04N7/32 , H04N19/196 , H04N19/105 , H04N19/176 , H04N19/61 , H04N19/463 , H04N19/90 , H04N19/426
摘要： In an example, aspects of this disclosure relate to a method of coding video data that includes identifying a plurality of quantization parameter (QP) values associated with a plurality of reference blocks of video data. The method also includes generating a reference QP for the plurality of reference blocks based on the plurality of QPs. The method also includes storing the reference QP, and coding a block of video data based on the stored reference QP.
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公开(公告)号：US20120328004A1
公开(公告)日：2012-12-27
申请号：US13529508
申请日：2012-06-21
CPC分类号： H04N19/196 , H04N19/105 , H04N19/176 , H04N19/428 , H04N19/463 , H04N19/61 , H04N19/90
摘要： In an example, aspects of this disclosure relate to a method of coding video data that includes identifying a plurality of quantization parameter (QP) values associated with a plurality of reference blocks of video data. The method also includes generating a reference QP for the plurality of reference blocks based on the plurality of QPs. The method also includes storing the reference QP, and coding a block of video data based on the stored reference QP.
摘要翻译： 在一个示例中，本公开的方面涉及对包括识别与多个视频数据的参考块相关联的多个量化参数（QP）值的视频数据的编码方法。 该方法还包括基于多个QP为多个参考块生成参考QP。 该方法还包括存储参考QP，并且基于存储的参考QP编码视频数据块。
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3.发明授权公开(公告)号：US09288496B2
公开(公告)日：2016-03-15
申请号：US13237412
申请日：2011-09-20
IPC分类号： H04N7/12 , H04N19/14 , H04N19/196 , H04N19/176 , H04N19/129
CPC分类号： H04N19/14 , H04N19/129 , H04N19/176 , H04N19/196 , H04N19/197
摘要： Video coding devices and methods use a function-based definition of scan order to scan transform coefficients associated with a block of residual video data. A video coder may define a scan order for coefficients based on a predefined function and one or more parameter values. A video encoder may use a function-based scan order to scan a two-dimensional array of coefficients to produce a one-dimensional array of coefficients for use in producing encoded video data. The video encoder may signal the parameters to a video decoder, or the video decoder may infer one or more of the parameters. The video decoder may use the function-based scan order to scan a one-dimensional array of coefficients to reproduce the two-dimensional array of coefficients for use in producing decoded video data. In each case, the scan order may vary according to the parameter values, which may include block size, orientation, and/or orientation strength.
摘要翻译： 视频编码设备和方法使用扫描顺序的基于功能的定义来扫描与一组残留视频数据相关联的变换系数。 视频编码器可以基于预定义的功能和一个或多个参数值来定义系数的扫描顺序。 视频编码器可以使用基于功能的扫描顺序来扫描系数的二维阵列以产生用于产生编码视频数据的一维系数阵列。 视频编码器可以将参数发送给视频解码器，或者视频解码器可以推断一个或多个参数。 视频解码器可以使用基于功能的扫描顺序来扫描系数的一维阵列，以再现用于产生解码视频数据的二维系数阵列。 在每种情况下，扫描顺序可以根据可能包括块大小，取向和/或取向强度的参数值而变化。
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4.发明申请公开(公告)号：US20120140822A1
公开(公告)日：2012-06-07
申请号：US13237412
申请日：2011-09-20
CPC分类号： H04N19/14 , H04N19/129 , H04N19/176 , H04N19/196 , H04N19/197
摘要： Video coding devices and methods use a function-based definition of scan order to scan transform coefficients associated with a block of residual video data. A video coder may define a scan order for coefficients based on a predefined function and one or more parameter values. A video encoder may use a function-based scan order to scan a two-dimensional array of coefficients to produce a one-dimensional array of coefficients for use in producing encoded video data. The video encoder may signal the parameters to a video decoder, or the video decoder may infer one or more of the parameters. The video decoder may use the function-based scan order to scan a one-dimensional array of coefficients to reproduce the two-dimensional array of coefficients for use in producing decoded video data. In each case, the scan order may vary according to the parameter values, which may include block size, orientation, and/or orientation strength.
摘要翻译： 视频编码设备和方法使用扫描顺序的基于功能的定义来扫描与一组残留视频数据相关联的变换系数。 视频编码器可以基于预定义的功能和一个或多个参数值来定义系数的扫描顺序。 视频编码器可以使用基于功能的扫描顺序来扫描系数的二维阵列以产生用于产生编码视频数据的一维系数阵列。 视频编码器可以将参数发送给视频解码器，或者视频解码器可以推断一个或多个参数。 视频解码器可以使用基于功能的扫描顺序来扫描系数的一维阵列，以再现用于产生解码视频数据的二维系数阵列。 在每种情况下，扫描顺序可以根据可能包括块大小，取向和/或取向强度的参数值而变化。
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公开(公告)号：US09008175B2
公开(公告)日：2015-04-14
申请号：US13248968
申请日：2011-09-29
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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公开(公告)号：US20120082224A1
公开(公告)日：2012-04-05
申请号：US13248968
申请日：2011-09-29
IPC分类号： H04N7/32
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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7.发明授权Loop filtering around slice boundaries or tile boundaries in video coding 有权在视频编码中围绕切片边界或平铺边界进行循环滤波公开(公告)号：US09462298B2
公开(公告)日：2016-10-04
申请号：US13598375
申请日：2012-08-29
申请人： In Suk Chong , Xianglin Wang , Marta Karczewicz
发明人： In Suk Chong , Xianglin Wang , Marta Karczewicz
CPC分类号： H04N19/82 , H04N19/117 , H04N19/167 , H04N19/182 , H04N19/86
摘要： The techniques of this disclosure apply to loop filtering across slice or tile boundaries in a video coding process. In one example, a method for performing loop filtering in a video coding process includes determining that pixels corresponding to filter coefficients of a filter mask for a loop filter are across a slice or tile boundary, removing filter coefficients corresponding to the pixels across the slice or tile boundary from the filter mask, renormalizing the filter mask without the removed filter coefficients, performing loop filtering using the renormalized filter mask.
摘要翻译： 本公开的技术适用于跨视频编码过程中的片或片边界的环路滤波。 在一个示例中，用于在视频编码处理中执行环路滤波的方法包括：确定与环路滤波器的滤波器滤波器的滤波器系数相对应的像素跨越切片或平铺边界，去除对应于跨越切片的像素的滤波器系数; 来自滤波器掩码的瓦片边界，对没有去除的滤波器系数的滤波器掩码进行重新规范化，使用重新归一化的滤波器掩码执行环路滤波。
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8.发明申请公开(公告)号：US20130101016A1
公开(公告)日：2013-04-25
申请号：US13598375
申请日：2012-08-29
申请人： In Suk Chong , Xianglin Wang , Marta Karczewicz
发明人： In Suk Chong , Xianglin Wang , Marta Karczewicz
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/167 , H04N19/182 , H04N19/86
摘要： The techniques of this disclosure apply to loop filtering across slice or tile boundaries in a video coding process. In one example, a method for performing loop filtering in a video coding process includes determining that pixels corresponding to filter coefficients of a filter mask for a loop filter are across a slice or tile boundary, removing filter coefficients corresponding to the pixels across the slice or tile boundary from the filter mask, renormalizing the filter mask without the removed filter coefficients, performing loop filtering using the renormalized filter mask.
摘要翻译： 本公开的技术适用于跨视频编码过程中的片或片边界的环路滤波。 在一个示例中，用于在视频编码处理中执行环路滤波的方法包括：确定与环路滤波器的滤波器滤波器的滤波器系数相对应的像素跨越切片或平铺边界，去除对应于跨越切片的像素的滤波器系数; 来自滤波器掩码的瓦片边界，对没有去除的滤波器系数的滤波器掩码进行重新规范化，使用重新归一化的滤波器掩码执行环路滤波。
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公开(公告)号：US09736489B2
公开(公告)日：2017-08-15
申请号：US13585423
申请日：2012-08-14
申请人： Xianglin Wang , Yunfei Zheng , Vadim Seregin , Marta Karczewicz
发明人： Xianglin Wang , Yunfei Zheng , Vadim Seregin , Marta Karczewicz
IPC分类号： H04N19/436 , H04N19/52
CPC分类号： H04N19/436 , H04N19/52
摘要： For each prediction unit (PU) belonging to a coding unit (CU), a video coder generates a candidate list. The video coder generates the candidate list such that each candidate in the candidate list that is generated based on motion information of at least one other PU is generated without using motion information of any of the PUs belonging to the CU. After generating the candidate list for a PU, the video coder generates a predictive video block for the PU based on one or more reference blocks indicated by motion information of the PU. The motion information of the PU is determinable based on motion information indicated by a selected candidate in the candidate list for the PU.
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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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