VIDEO DECODING APPARATUS AND VIDEO DECODING METHOD
    63.
    发明公开
    VIDEO DECODING APPARATUS AND VIDEO DECODING METHOD 有权
    视频解码装置和视频解码方法

    公开(公告)号:EP3200462A1

    公开(公告)日:2017-08-02

    申请号:EP17162287.1

    申请日:2003-09-26

    申请人: NTT DoCoMo, Inc.

    IPC分类号: H04N19/50

    摘要: A method of decoding encoded pictures may be provided. The method may include computer implemented steps performed by a processor of a computer system to implement the following steps: receiving the encoded pictures and delay time syntaxes associated respectively with the encoded pictures, wherein the delay time syntaxes represent time periods uniquely defined for the individual encoded pictures; decoding the encoded pictures into a decoded pictures; and holding at least some of the decoded pictures in a decoded picture buffer for respective time periods represented by the delay time syntaxes associated with the at least some of the decoded pictures before outputting the at least some of the decoded pictures from the decoded picture buffer for display, wherein the decoded picture buffer holds at least one decoded picture used for reference to decode at least one of the encoded pictures.

    摘要翻译: 可以提供解码编码图片的方法。 该方法可以包括由计算机系统的处理器执行的计算机实现的步骤,以实现以下步骤:接收分别与编码图片相关联的编码图片和延迟时间语法,其中延迟时间语法表示针对单独编码唯一定义的时间段 图片; 将编码图片解码为解码图片; 以及在从解码图片缓冲器输出至少一些解码图片之前,将解码图片中的至少一些解码图片保存在与解码图片中的至少一些相关联的延迟时间语法所代表的相应时段中, 显示器,其中解码图片缓冲器保存用于参考的至少一个解码图片以解码至少一个编码图片。

    VIDEO PREDICTION ENCODING DEVICE, VIDEO PREDICTION ENCODING METHOD, VIDEO PREDICTION ENCODING PROGRAM, VIDEO PREDICTION DECODING DEVICE, VIDEO PREDICTION DECODING METHOD, AND VIDEO PREDICTION DECODING PROGRAM
    64.
    发明公开
    VIDEO PREDICTION ENCODING DEVICE, VIDEO PREDICTION ENCODING METHOD, VIDEO PREDICTION ENCODING PROGRAM, VIDEO PREDICTION DECODING DEVICE, VIDEO PREDICTION DECODING METHOD, AND VIDEO PREDICTION DECODING PROGRAM 有权
    视频预测编码装置,视频预测编码方法,视频预测编码程序,视频预测解码装置,视频预测解码方法和视频预测解码程序

    公开(公告)号:EP3054684A1

    公开(公告)日:2016-08-10

    申请号:EP16162303.8

    申请日:2012-09-25

    申请人: NTT DOCOMO, INC.

    摘要: Enhanced performance of bi-prediction with a smaller amount of coding bits is provided. A predicted signal generation unit (103) provided in a video predictive encoding device includes: a means (122) which estimates a zero-th motion vector for derivation of a zero-th predicted signal, selects a zero-th motion vector predictor similar to the zero-th motion vector, and generates zero-th side information containing a zero-th motion vector predictor index to identify the motion vector predictor and a motion vector difference determined from the zero-th motion vector and the zero-th motion vector predictor; a means (121) which selects a motion vector for generation of a first predicted signal having a high correlation with a target region, which generates first side information containing a first motion vector predictor index to identify the motion vector as a first motion vector predictor, and which sets the first motion vector predictor to a first motion vector; and a means (123) which combines the zero-th and first predicted signals to generate a predicted signal of the target region.

    摘要翻译: 提供具有较少量编码位的双预测的增强性能。 在视频预测编码装置中提供的预测信号产生单元(103)包括:估计用于导出第零预测信号的第零运动矢量的装置(122),选择与第零预测运动矢量类似的第零预测运动矢量 并且生成包含第零预测运动向量索引的第零边信息,以识别运动向量预测值和根据第零运动向量和第零运动向量预测值确定的运动向量差 ; 选择用于生成与对象区域的相关性高的第一预测信号的运动矢量的单元(121),生成包含将运动矢量作为第一预测运动矢量的第一预测运动矢量索引的第一辅助信息, 并且将第一运动矢量预测值设置为第一运动矢量; 和一个装置(123),它组合第零和第一预测信号以产生目标区域的预测信号。

    IMAGE ENCODING DEVICE, METHOD AND PROGRAM, AND, IMAGE DECODING DEVICE, METHOD AND PROGRAM
    66.
    发明公开
    IMAGE ENCODING DEVICE, METHOD AND PROGRAM, AND, IMAGE DECODING DEVICE, METHOD AND PROGRAM 审中-公开
    BILDCODIERVORRICHTUNG&8209; VERFAHREN UND PROGRAMM UND BILDDECODIERVORRICHTUNG&8209; VERFAHREN UND PROGRAMM

    公开(公告)号:EP2400738A1

    公开(公告)日:2011-12-28

    申请号:EP09840444.5

    申请日:2009-12-25

    申请人: NTT DOCOMO, INC.

    IPC分类号: H04N1/41 H04N7/30 H04N7/32

    摘要: A picture encoding device (100) is provided, which includes: a unit (110) for selecting a division method of a target region from among a plurality of division methods, and a unit (104) for dividing the target region into a plurality of small regions using the division method, generating a prediction signal in the small region, generating a residual signal between the prediction signal and the original signal of the small region, generating quantized transform coefficients by performing frequency transform and quantization of the residual signal, selecting a map from among a plurality of maps for mapping the quantized transform coefficients of the small region onto leaves of a tree structure that is common to the plurality of division methods in accordance with attribute information of the small region, mapping the quantized transform coefficients of the small region onto the leaves of the tree structure based on the map, and updating the states of the nodes and leaves of the tree structure according to the coefficient values of the respective leaves. The picture encoding device (100) also includes a unit (105) for encoding the states of the nodes and the leaves using a probability model that is common to the plurality of division methods, and a unit (106) for encoding non-zero quantized transform coefficients of the small region.

    摘要翻译: 提供了一种图像编码装置,其包括:用于从多个分割方法中选择目标区域的分割方法的单元(110)和用于将目标区域划分为多个分割方法的单元(104) 小区域,在小区域中生成预测信号,在预测信号和小区域的原始信号之间产生残留信号,通过对残留信号进行频率变换和量化,生成量化的变换系数,选择 映射从多个映射中的映射,用于根据小区域的属性信息将小区域的量化变换系数映射到多个分割方法共同的树结构的叶子上,映射小区域的量化变换系数 区域到树结构的树叶上,并且更新树结构的节点和树叶的状态 根据各叶的系数值计算。 图像编码装置(100)还包括使用多个分割方法共有的概率模型对节点和叶子的状态进行编码的单元(105),以及用于对非零量化 变换小区域的系数。

    IMAGE PREDICTION/ENCODING DEVICE, IMAGE PREDICTION/ENCODING METHOD, IMAGE PREDICTION/ENCODING PROGRAM, IMAGE PREDICTION/DECODING DEVICE, IMAGE PREDICTION/DECODING METHOD, AND IMAGE PREDICTION DECODING PROGRAM
    69.
    发明公开

    公开(公告)号:EP2154901A1

    公开(公告)日:2010-02-17

    申请号:EP08740053.7

    申请日:2008-04-08

    申请人: NTT DoCoMo, Inc.

    IPC分类号: H04N7/32

    摘要: An objective is to provide an image predictive encoding device, image predictive encoding method, image predictive encoding program, image predictive decoding device, image predictive decoding method, and image predictive decoding program for selecting a plurality of candidate prediction signals, without increase in information amount. A weighting unit 234 and an adder 235 process pixel signals extracted by a prediction adjacent region extractor 232 by a predetermined synthesis method, for example, by averaging to generate a comparison signal to an adjacent pixel signal for each combination. A comparison-selection unit 236 selects a combination with a high correlation between the comparison signal generated by the weighting unit 234 and others and the adjacent pixel signal acquired by a target adjacent region extractor 233. A prediction region extractor 204, weighting unit 205, and adder 206 generate candidate prediction signals and process them by a predetermined synthesis method to generate a prediction signal.

    摘要翻译: 一个目的是提供一种用于选择候选预测信号的多元性提供一种图像预测编码装置,图像预测编码方法,图像预测编码程序,图像预测解码装置,图像预测解码方法以及图像预测解码程序,而不在信息量增加 , 加权单元234和到加法器通过预定的合成方法由预测邻接区域提取器232提取出来,对于实施例235处理的像素信号,通过平均在每个组合相邻的像素信号,以产生一个比较信号,以。 比较选择单元236选择与由加权单元234以及其他和由对象邻接区域提取器233的预测区域提取器204获取的相邻像素的信号,加权单元205生成的比较信号之间的相关性高的组合,并且 加法器206生成候选预测信号和通过预定的合成方法,生成预测信号处理它们。