公开(公告)号：US20070009050A1

公开(公告)日：2007-01-11

申请号：US11402620

申请日：2006-04-11

申请人： Xianglin Wang ,  Marta Karczewicz ,  Yiliang Bao ,  Justin Ridge

发明人： Xianglin Wang ,  Marta Karczewicz ,  Yiliang Bao ,  Justin Ridge

IPC分类号： H04B1/66 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/61 ,  H04N19/63

摘要： The present invention reduces the complexity in the update step without significantly affecting the coding performance. In the update operation in motion compensated temporal filtering for video coding, an interpolation filter is adaptively selected from a short filter and a long filter so that the update signal can be obtained through the interpolation of prediction residue based on the interpolation filter. A short filter refers to a filter with a relatively small number of filter taps such as two. A long filter refers to a filter with a more than two filter taps.

摘要翻译： 本发明降低了更新步骤中的复杂性，而不显着影响编码性能。 在用于视频编码的运动补偿时间滤波的更新操作中，从短滤波器和长滤波器自适应地选择插值滤波器，使得可以通过基于内插滤波器的预测残差内插来获得更新信号。 短过滤器是指具有相对较少数量的过滤器抽头（例如两个）的过滤器。 长过滤器是指具有两个以上过滤器抽头的过滤器。

公开(公告)号：US20060233241A1

公开(公告)日：2006-10-19

申请号：US11105312

申请日：2005-04-13

申请人： Justin Ridge ,  Ye-Kui Wang ,  Yiliang Bao ,  Marta Karczewicz ,  Xianglin Wang

发明人： Justin Ridge ,  Ye-Kui Wang ,  Yiliang Bao ,  Marta Karczewicz ,  Xianglin Wang

IPC分类号： H04N7/12 ,  H04B1/66 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N21/64792 ,  H04N19/34 ,  H04N19/61 ,  H04N21/234327

摘要： A system and method for providing improved FGS identification in scalable video coding. According to the present invention, each FGS enhancement layer is assigned a unique dependency identifier and contains only FGS enhancement information. For subsequent enhancement layers, the base dependency identifier for the subsequent enhancement layers will point to either a base-quality layer or an FGS enhancement layer.

摘要翻译： 一种用于在可缩放视频编码中提供改进的FGS识别的系统和方法。 根据本发明，每个FGS增强层被分配唯一的相关性标识符，并且仅包含FGS增强信息。 对于随后的增强层，后续增强层的基本依赖性标识符将指向基本质量层或FGS增强层。

公开(公告)号：US09800870B2

公开(公告)日：2017-10-24

申请号：US13613382

申请日：2012-09-13

申请人： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

发明人： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

IPC分类号： H04N7/32 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/91 ,  H04N19/61

CPC分类号： H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/91

摘要： A video coder, such as a video encoder or a video decoder, identifies an entropy coding context in a set of one or more entropy coding contexts. The video coder identifies the entropy coding context without reference to a neighboring coding unit that is above a current coding unit in a current picture. The video coder then entropy codes a short distance intra-prediction (SDIP) syntax element of a coding unit (CU) using the identified entropy coding context. The SDIP syntax element at least partially defines a mode by which the CU is partitioned into a set of one or more transform units.

公开(公告)号：US09654785B2

公开(公告)日：2017-05-16

申请号：US13491076

申请日：2012-06-07

申请人： Wei-Jung Chien ,  Marta Karczewicz ,  Xianglin Wang

发明人： Wei-Jung Chien ,  Marta Karczewicz ,  Xianglin Wang

IPC分类号： H04N7/32 ,  H04N19/196 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/11 ,  H04N19/463 ,  H04N19/186

CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463

摘要： This disclosure describes techniques for intra-prediction mode signaling for video coding. In one example, a video coder is configured to determine, for a block of video data, a set of most probable intra-prediction modes such that the set of most probable intra-prediction modes has a size that is equal to a predetermined number that is greater than or equal to two. The video coder is also configured to code a value representative of an actual intra-prediction mode for the block based at least in part on the set of most probable intra-prediction modes and code the block using the actual intra-prediction mode. The video coder may further be configured to code the block using the actual intra-prediction mode, e.g., to encode or decode the block. Video encoders and video decoders may implement these techniques.

公开(公告)号：US09491491B2

公开(公告)日：2016-11-08

申请号：US13484068

申请日：2012-05-30

申请人： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

发明人： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

IPC分类号： H04N7/30 ,  H04N7/26 ,  H04N7/32 ,  H04N19/93 ,  H04N19/176 ,  H04N19/13 ,  H04N19/60 ,  H04N19/91 ,  H04N19/18

CPC分类号： H04N19/93 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/91

摘要： A video coding device is configured to code coefficients of residual blocks of video data. When a coefficient of a transform unit of video data has a scan order value that is less than a threshold and when the coefficient is the last significant coefficient in a scan order in the transform unit, the video coding device may execute a function to determine a mapping between data for the coefficient and a codeword index value, and code the data for the coefficient using a codeword associated with the codeword index value. The video coding device may comprise a video encoder or a video decoder, in some examples.

摘要翻译： 视频编码装置被配置为对视频数据的残留块的系数进行编码。 当视频数据的变换单位的系数具有小于阈值的扫描顺序值，并且当系数是变换单元中的扫描顺序中的最后有效系数时，视频编码装置可以执行确定 在系数的数据和码字索引值之间进行映射，并且使用与码字索引值相关联的码字对该系数的数据进行编码。 在一些示例中，视频编码装置可以包括视频编码器或视频解码器。

公开(公告)号：US09445093B2

公开(公告)日：2016-09-13

申请号：US13536762

申请日：2012-06-28

申请人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

发明人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC分类号： H04N7/30 ,  H04N19/60 ,  H04N19/176 ,  H04N19/129 ,  H04N19/17

CPC分类号： H04N19/60 ,  H04N19/129 ,  H04N19/17 ,  H04N19/176

摘要： A method for encoding transform coefficients in a video encoding process includes dividing a block of transform coefficients into a plurality of zones, determining a scan order for each of the plurality of zones, and performing a scan on each of the transform coefficients in each of the plurality of zones according to their respective determined scan order. In another example, a method for decoding transform coefficients in a video encoding process includes receiving a one-dimensional array of transform coefficients, determining a scan order for each of a plurality of sections of the one-dimensional array, wherein each section of the one-dimensional array corresponds to one of a plurality of zones defining a block of transform coefficients, and performing a scan on each of the transform coefficients in each of the section of the one dimensional array of zones according to their respective determined scan order.

摘要翻译： 一种用于对视频编码处理中的变换系数进行编码的方法包括：将变换系数块划分成多个区域，确定多个区域中的每个区域的扫描顺序，以及对每个区域中的每个变换系数执行扫描 多个区域根据它们各自确定的扫描顺序。 在另一示例中，用于解码视频编码处理中的变换系数的方法包括接收变换系数的一维阵列，确定一维阵列的多个部分中的每一个的扫描顺序，其中，所述一维阵列的每个部分 维数组对应于定义变换系数块的多个区域中的一个，并且根据各自确定的扫描顺序对区域的一维阵列的每个区段中的每一个对每个变换系数执行扫描。

公开(公告)号：US09282338B2

公开(公告)日：2016-03-08

申请号：US13487996

申请日：2012-06-04

申请人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

发明人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC分类号： H04N7/32 ,  H04N19/40 ,  H04N19/52 ,  H04N7/26 ,  H04N19/51

CPC分类号： H04N19/40 ,  H04N19/52

摘要： A unified candidate block set for both adaptive motion vector prediction (AMVP) mode and merge mode for use in inter-prediction is proposed. In general, the same candidate block set is used regardless of which motion vector prediction mode (e.g., merge mode or AMVP mode) is used. In other examples of this disclosure, one candidate block in a set of candidate blocks is designated as an additional candidate block. The additional candidate block is used if one of the other candidate blocks is unavailable. Also, the disclosure proposes a checking pattern where the left candidate block is checked before the below left candidate block. Also, the above candidate block is checked before the right above candidate block.

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。

公开(公告)号：US09131239B2

公开(公告)日：2015-09-08

申请号：US13487914

申请日：2012-06-04

申请人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

发明人： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC分类号： H04N7/32 ,  H04N7/26 ,  H04N19/40 ,  H04N19/52 ,  H04N19/51

CPC分类号： H04N19/40 ,  H04N19/52

摘要： A unified candidate block set for both adaptive motion vector prediction (AMVP) mode and merge mode for use in inter-prediction is proposed. In general, the same candidate block set is used regardless of which motion vector prediction mode (e.g., merge mode or AMVP mode) is used. In other examples of this disclosure, one candidate block in a set of candidate blocks is designated as an additional candidate block. The additional candidate block is used if one of the other candidate blocks is unavailable. Also, the disclosure proposes a checking pattern where the left candidate block is checked before the below left candidate block. Also, the above candidate block is checked before the right above candidate block.

摘要翻译： 提出了一种用于自适应运动矢量预测（AMVP）模式和用于帧间预测的合并模式的统一候选块集合。 通常，使用相同的候选块集合，而不管使用哪个运动矢量预测模式（例如，合并模式或AMVP模式）。 在本公开的其他示例中，一组候选块中的一个候选块被指定为附加候选块。 如果其他候选块之一不可用，则使用附加候选块。 此外，本公开提出了在左下候选块之前检查左候选块的检查模式。 此外，在候选块之前检查上述候选块。

公开(公告)号：US20130136175A1

公开(公告)日：2013-05-30

申请号：US13608380

申请日：2012-09-10

申请人： Xianglin Wang ,  Marta Karczewicz ,  Liwei Guo

发明人： Xianglin Wang ,  Marta Karczewicz ,  Liwei Guo

IPC分类号： H04N7/26 ,  H04N7/32

CPC分类号： H04N19/61 ,  H04N19/11 ,  H04N19/122 ,  H04N19/157 ,  H04N19/176 ,  H04N19/593

摘要： This disclosure proposes techniques for transform partitioning in an intra-prediction video coding process. In one example, for a given intra-predicted block, a reduced number of transform unit partition options is allowed, based on certain conditions. In another example, transform units are decoupled from prediction units for intra-predicted block. For a given prediction unit, transforms of different sizes and shapes from the prediction unit may be applied. In another example, a reduced number of intra-prediction modes are allowed for a prediction unit having a non-square shape.

摘要翻译： 本公开提出了在帧内预测视频编码处理中进行变换划分的技术。 在一个示例中，对于给定的帧内预测块，基于某些条件允许减少数量的变换单元分区选项。 在另一示例中，变换单元与用于帧内预测块的预测单元去耦。 对于给定的预测单元，可以应用来自预测单元的不同大小和形状的变换。 在另一示例中，对于具有非正方形形状的预测单元，允许减少数量的帧内预测模式。