Methods and apparatus for efficient video encoding and decoding of intra prediction mode
    11.
    发明授权
    Methods and apparatus for efficient video encoding and decoding of intra prediction mode 有权
    用于帧内预测模式的高效视频编码和解码的方法和装置

    公开(公告)号:US09154798B2

    公开(公告)日:2015-10-06

    申请号:US13496052

    申请日:2010-09-14

    摘要: Methods and apparatus are provided for efficient video encoding and decoding of intra prediction mode. An apparatus includes a video encoder for encoding picture data for at least a block in a picture by determining a spatial pattern for a decoded intra prediction mode residue used to reconstruct the picture at the video encoder. The decoded intra prediction mode residue is obtained by inverse quantizing and inverse transforming a transformed and quantized difference between an original version of the block and at least one reference block. The spatial pattern is used to determine an intra prediction mode for encoding the block.

    摘要翻译: 提供了用于帧内预测模式的有效视频编码和解码的方法和装置。 一种装置包括一个视频编码器,用于通过确定用于在视频编码器处重构图像的解码帧内预测模式残差的空间模式来对图像中的至少一个块的图像数据进行编码。 通过对块的原始版本与至少一个参考块进行逆量化和逆变换变换和量化的差异来获得解码的帧内预测模式残差。 空间模式用于确定用于编码块的帧内预测模式。

    Unified merge mode and adaptive motion vector prediction mode candidates selection
    12.
    发明授权
    Unified merge mode and adaptive motion vector prediction mode candidates selection 有权
    统一合并模式和自适应运动矢量预测模式候选选择

    公开(公告)号:US09131239B2

    公开(公告)日:2015-09-08

    申请号:US13487914

    申请日:2012-06-04

    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。

    METHODS AND APPARATUS FOR ADAPTIVE RESIDUAL UPDATING OF TEMPLATE MATCHING PREDICTION FOR VIDEO ENCODING AND DECODING
    14.
    发明申请
    METHODS AND APPARATUS FOR ADAPTIVE RESIDUAL UPDATING OF TEMPLATE MATCHING PREDICTION FOR VIDEO ENCODING AND DECODING 审中-公开
    适用于视频编码和解码的模板匹配预测的适应性更新方法和装置

    公开(公告)号:US20120281752A1

    公开(公告)日:2012-11-08

    申请号:US13514814

    申请日:2010-12-02

    IPC分类号: H04N7/32 H04N7/26 H04N7/50

    摘要: Methods and apparatus are provided for adaptive residual updating of template matching prediction for video encoding and decoding. In one embodiment, an apparatus and method encodes picture data for at least a block in a picture using template matching prediction, wherein the template matching prediction involves selecting from among a plurality of residual updating schemes for use in encoding the block. In another embodiment, an apparatus and method encodes a block in a picture using template matching prediction, wherein the template matching prediction involves partitioning the block into a plurality of sub-blocks, and applying a transform to a residual of a particular sub-block from among the plurality of sub-blocks subsequent to searching for a prediction for the particular sub-block block and prior to completion of processing of the block with respect to the template matching prediction.

    摘要翻译: 提供了用于视频编码和解码的模板匹配预测的自适应残差更新的方法和装置。 在一个实施例中,一种装置和方法使用模板匹配预测对图片中的至少一个块的图像数据进行编码,其中模板匹配预测涉及从用于编码块的多个残留更新方案中进行选择。 在另一个实施例中,一种装置和方法使用模板匹配预测对图片中的块进行编码,其中模板匹配预测涉及将块划分成多个子块,并将变换应用于特定子块的残差 在针对特定子块块搜索预测之后的多个子块中以及在相对于模板匹配预测完成块的处理之前的多个子块中。

    EFFICIENTLY CODING SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING
    15.
    发明申请
    EFFICIENTLY CODING SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING 审中-公开
    视频编码中的视频块高效编码扫描订单信息

    公开(公告)号:US20120163472A1

    公开(公告)日:2012-06-28

    申请号:US13332300

    申请日:2011-12-20

    IPC分类号: H04N7/26

    摘要: An apparatus is disclosed for coding coefficients associated with a block of video data, including a video coder configured to code information that identifies a first scanning order associated with the block if a position of any of one or more of the coefficients within the block, starting with a first coefficient within the block and ending with a last non-zero coefficient within the block according to the first scanning order, and proceeding according to the first scanning order, according to the first scanning order is different than a position of the respective coefficient within the block according to a second scanning order, and avoid coding the information if the position of each of the one or more of the coefficients within the block according to the first scanning order is the same as the position of the respective coefficient within the block according to the second scanning order.

    摘要翻译: 公开了一种用于对与视频数据块相关联的系数进行编码的装置,包括视频编码器,视频编码器被配置为如果块内的一个或多个系数中的任何一个的位置开始,则识别与该块相关联的第一扫描顺序的信息,起始 具有块内的第一系数并且根据第一扫描顺序以块内的最后非零系数结束,并且根据第一扫描顺序进行,根据第一扫描顺序不同于相应系数的位置 根据第二扫描顺序在块内,并且如果根据第一扫描顺序的块内的一个或多个系数中的每一个的位置与块内的相应系数的位置相同,则避免对信息进行编码 根据第二扫描顺序。

    INTRA SMOOTHING FILTER FOR VIDEO CODING
    18.
    发明申请
    INTRA SMOOTHING FILTER FOR VIDEO CODING 有权
    INTRA SMOOTHING过滤器用于视频编码

    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

    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。

    METHODS AND APPARATUS FOR ADAPTIVE MODE VIDEO ENCODING AND DECODING
    19.
    发明申请
    METHODS AND APPARATUS FOR ADAPTIVE MODE VIDEO ENCODING AND DECODING 审中-公开
    自适应视频编码和解码的方法和装置

    公开(公告)号:US20110286513A1

    公开(公告)日:2011-11-24

    申请号:US13138239

    申请日:2009-12-11

    IPC分类号: H04N11/02

    摘要: There are provided methods and apparatus for adaptive mode video encoding and decoding. An apparatus includes an encoder for encoding adapted mode mapping information for a mapping between values of a mode index and modes available to encode at least a portion of a picture in a sequence of pictures. The adapted mode mapping information is adapted based on one or more actual parameters of the sequence.

    摘要翻译: 提供了自适应模式视频编码和解码的方法和装置。 一种装置包括编码器,用于编码用于模式索引的值之间的映射的适应模式映射信息和可用于对图像序列中的图片的至少一部分进行编码的模式。 基于序列的一个或多个实际参数来适配适应模式映射信息。

    METHOD AND APPARATUS FOR TRANSFORM SELECTION IN VIDEO ENCODING AND DECODING
    20.
    发明申请
    METHOD AND APPARATUS FOR TRANSFORM SELECTION IN VIDEO ENCODING AND DECODING 有权
    在视频编码和解码中进行变换选择的方法和装置

    公开(公告)号:US20110268183A1

    公开(公告)日:2011-11-03

    申请号:US13138088

    申请日:2009-10-21

    IPC分类号: H04N7/30 H04N7/26

    摘要: There are provided methods and apparatus for transform selection in video coding. An apparatus includes a video encoder for encoding at least a block in a picture by selecting a transform to apply to a residue of the block from a set of two or more available transforms. The transform is selected based on at least one of an inter prediction mode used to predict at least one reference for the block, one or more values corresponding to a motion vector, a value of a residue of one or more previously encoded blocks, a value of prediction data for the block, one or more transform selections of one or more neighboring reconstructed blocks, and a quantization step applied to transform coefficients for the residue of the block.

    摘要翻译: 提供了视频编码中的变换选择的方法和装置。 一种装置包括:视频编码器,用于通过从一组两个或多个可用变换中选择适用于块的残差的变换来对图像中的至少块进行编码。 基于用于预测块的至少一个参考的帧间预测模式,对应于运动矢量的一个或多个值,一个或多个先前编码块的残差的值,值 用于块的预测数据,一个或多个相邻重构块的一个或多个变换选择,以及应用于变换块的残差的系数的量化步长。