METHODS AND APPARATUS FOR SPATIALLY VARYING RESIDUE CODING
    61.
    发明申请
    METHODS AND APPARATUS FOR SPATIALLY VARYING RESIDUE CODING 有权
    用于空间变化残留编码的方法和装置

    公开(公告)号:US20120099642A1

    公开(公告)日:2012-04-26

    申请号:US13382394

    申请日:2010-07-01

    IPC分类号: H04N7/26

    摘要: Methods and apparatus are provided for spatially varying residue coding. An apparatus includes a video encoder (300) for encoding picture data for at least a block in a picture by selecting a spatially varying encoding method for a residue corresponding to a difference between an original version of the block and at least one reference block. One or more transforms are used to transform a portion of the block and a remaining area of the block is encoded using an alternate encoding method with respect to the one or more transforms or is not encoded.

    摘要翻译: 为空间变化的残留编码提供了方法和装置。 一种装置包括:视频编码器(300),用于通过选择与块的原始版本与至少一个参考块之间的差异相对应的残差的空间变化编码方法来对图像中的至少一个块的图像数据进行编码。 使用一个或多个变换来变换块的一部分,并且使用关于一个或多个变换的替代编码方法对块的剩余区域进行编码,或者不被编码。

    METHOD AND APPARATUS FOR IMPROVED ENTROPY ENCODING AND DECODING
    62.
    发明申请
    METHOD AND APPARATUS FOR IMPROVED ENTROPY ENCODING AND DECODING 有权
    改进熵编码和解码的方法和装置

    公开(公告)号:US20130208806A1

    公开(公告)日:2013-08-15

    申请号:US13879378

    申请日:2011-10-06

    IPC分类号: H04N7/26

    摘要: Methods and apparatus are provided for improved entropy encoding and decoding. An apparatus includes a video encoder for encoding at least a block in a picture by transforming a residue of the block to obtain transform coefficients, quantizing the transform coefficients to obtain quantized transform coefficients, and entropy coding the quantized transform coefficients. The quantized transform coefficients are encoded using a flag to indicate that a current one of the quantized transform coefficients being processed is a last non-zero coefficient for the block having a value greater than or equal to a specified value.

    摘要翻译: 提供了用于改进熵编码和解码的方法和装置。 一种装置包括一个视频编码器,用于通过对该块的残差进行变换来获得变换系数,对该变换系数进行量化以获得量化的变换系数,以及对量化的变换系数进行熵编码来对图像中的至少一个块进行编码。 使用标志对量化的变换系数进行编码,以指示正被处理的当前一个量化变换系数是具有大于或等于指定值的值的块的最后非零系数。

    ADAPTIVE LOOP FILTERING
    65.
    发明申请
    ADAPTIVE LOOP FILTERING 有权
    自适应环路滤波

    公开(公告)号:US20130243104A1

    公开(公告)日:2013-09-19

    申请号:US13988470

    申请日:2011-11-22

    IPC分类号: H04N7/26

    摘要: Various implementations provide filtering for pictures. Several such implementations attempt to reduce artifacts caused by over-filtering in a decoding loop. Certain of these implementations provide multiple loop filters, and select a loop filter based on the result of a deblocking 5 filter. One particular implementation applies a first filter to a picture to produce a filtered picture. A second filter is selected based on a difference between a value of a particular pixel in the filtered picture and a value of a corresponding pixel in the picture. The second filter is applied to the particular pixel in the filtered picture. In another implementation, a signal or signal structure includes 10 an indication of the second filter, an encoding of at least a portion of a picture, and an encoding of at least a portion of a subsequent picture that has been encoded based on the output of the second filter above.

    摘要翻译: 各种实现为图片提供过滤。 几个这样的实现尝试减少由解码循环中的过滤引起的伪像。 这些实现中的某些实现提供多个环路滤波器,并且基于去块5滤波器的结果来选择环路滤波器。 一个特定的实施方案将第一滤波器应用于图像以产生滤波图像。 基于滤波图像中的特定像素的值与图像中的对应像素的值之间的差异来选择第二滤波器。 第二个滤波器被应用于滤波图像中的特定像素。 在另一实施方案中,信号或信号结构包括:第二滤波器的指示,图像的至少一部分的编码,以及基于输出的编码的后续图像的至少一部分的编码 上面的第二个过滤器。

    METHODS AND APPARATUS FOR ADAPTIVE MODE VIDEO ENCODING AND DECODING
    66.
    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。

    Methods And Apparatus For Implicit Adaptive Motion Vector Predictor Selection For Video Encoding And Decoding
    68.
    发明申请
    Methods And Apparatus For Implicit Adaptive Motion Vector Predictor Selection For Video Encoding And Decoding 有权
    用于视频编码和解码的隐式自适应运动矢量预测器选择的方法和装置

    公开(公告)号:US20130208787A1

    公开(公告)日:2013-08-15

    申请号:US13634663

    申请日:2011-03-03

    IPC分类号: H04N7/26

    摘要: Methods and apparatus are provided for implicit adaptive motion vector predictor selection for video encoding and decoding. The method encodes an image block using implicit adaptive motion vector predictor selection. The motion vector for encoding the block is predicted by defining a set of motion vector predictor candidates for the block based on a plurality of spatio-temporal neighboring motion vectors; and then selecting from the set a particular motion vector predictor candidate as the motion vector for encoding the bloc. The selection is made responsive to respective values for a fidelity of the spatio-temporal neighboring motion vectors.

    摘要翻译: 提供了用于视频编码和解码的隐式自适应运动矢量预测器选择的方法和装置。 该方法使用隐式自适应运动矢量预测器选择对图像块进行编码。 通过基于多个时空相邻运动矢量定义用于块的运动矢量预测器候选的集合来预测用于编码块的运动矢量; 然后从该集合中选择特定的运动矢量预测器候选作为用于编码该块的运动矢量。 响应于空间 - 时间相邻运动矢量的保真度的各个值做出选择。

    METHOD AND APPARATUS FOR TRANSFORM SELECTION IN VIDEO ENCODING AND DECODING
    69.
    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。