Image coding method and image decoding method
    6.
    发明授权
    Image coding method and image decoding method 有权
    图像编码方法和图像解码方法

    公开(公告)号:US09560352B2

    公开(公告)日:2017-01-31

    申请号:US13980918

    申请日:2012-01-26

    摘要: An image coding method of coding a current block to be coded using a first reference index indicating a first reference picture and a first motion vector, includes: calculating, using a second reference index and a second motion vector used to code a corresponding block, a third reference index and a third motion vector as respective candidates for the first reference index and the first motion vector; determining a value of a flag that indicates whether or not to code the current block using the third reference index and the third motion vector as the first reference index and the first motion vector; and coding the current block using the first reference index and the first motion vector according to the value of the flag, and adding the value of the flag to a bitstream generated by the coding.

    摘要翻译: 一种使用指示第一参考图像和第一运动矢量的第一参考索引对要编码的当前块进行编码的图像编码方法包括:使用用于对相应块编码的第二参考索引和第二运动矢量来计算, 第三参考索引和第三运动矢量作为第一参考索引和第一运动矢量的相应候选; 使用第三参考索引和第三运动矢量作为第一参考索引和第一运动矢量来确定指示是否对当前块进行编码的标志的值; 以及根据所述标志的值使用所述第一参考索引和所述第一运动矢量对所述当前块进行编码,以及将所述标志的值与由所述编码生成的比特流相加。

    Moving picture coding method and moving picture decoding method
    7.
    发明授权
    Moving picture coding method and moving picture decoding method 有权
    运动图像编码方法和运动图像解码方法

    公开(公告)号:US09532050B2

    公开(公告)日:2016-12-27

    申请号:US13980450

    申请日:2012-01-24

    摘要: A moving picture coding apparatus includes a co-located block information determination unit which determines which one of a forward reference block and a backward reference block will be a co-located block and further determines whether only the unidirectional motion vector of the motion vectors of the co-located block is to be stored in a colPic memory, a temporal motion vector predictor calculation unit which derives a candidate motion vector predictor in temporal motion vector predictor mode using the colPic information stored in the colPic memory; and an inter prediction control unit which determines to code a motion vector using a candidate motion vector predictor having least error from the motion vector derived by motion estimation among candidate motion vector predictors.

    摘要翻译: 运动图像编码装置包括共同定位块信息确定单元,其确定前向参考块和后向参考块中的哪一个将是同位置块,并且还确定是否仅仅将所述运动矢量的单向运动矢量 共存块将被存储在colPic存储器中,时间运动矢量预测器计算单元,其使用存储在colPic存储器中的colPic信息在时间运动矢量预测器模式中导出候选运动矢量预测器; 以及帧间预测控制单元,其使用候选运动矢量预测器中的运动估计导出的运动矢量具有最小误差的候选运动矢量预测器来确定运动矢量。

    Image decoding method, image coding method, image decoding apparatus, image coding apparatus, program, and integrated circuit
    8.
    发明授权
    Image decoding method, image coding method, image decoding apparatus, image coding apparatus, program, and integrated circuit 有权
    图像解码方法,图像编码方法,图像解码装置,图像编码装置,程序和集成电路

    公开(公告)号:US09467710B2

    公开(公告)日:2016-10-11

    申请号:US13502592

    申请日:2010-10-29

    摘要: An image decoding method including: obtaining an old quantization scaling matrix which is a decoded quantization scaling matrix and is used for decoding a new quantization scaling matrix; obtaining, from the coded stream, an update parameter indicating an amount of change in the new quantization scaling matrix with respect to the old quantization scaling matrix; decoding the new quantization scaling matrix using the old quantization scaling matrix obtained in the obtaining of an old quantization scaling matrix and the update parameter obtained in the obtaining of an update parameter; and decoding the coded image using the new quantization scaling matrix decoded in the decoding of the new quantization scaling matrix.

    摘要翻译: 一种图像解码方法,包括:获得作为解码的量化缩放矩阵的旧的量化缩放矩阵,并用于解码新的量化缩放矩阵; 从编码流中获取指示相对于旧的量化缩放矩阵的新量化缩放矩阵的变化量的更新参数; 使用在获得旧的量化缩放矩阵中获得的旧的量化缩放矩阵和在获得更新参数中获得的更新参数来解码新的量化缩放矩阵; 以及使用在新的量化缩放矩阵的解码中解码的新的量化缩放矩阵来解码编码图像。