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81. 发明授权

US09749630B2 Image decoding method, image coding method, image decoding apparatus, image coding apparatus, program, and integrated circuit 有权
公开(公告)号：US09749630B2
公开(公告)日：2017-08-29
申请号：US13818702
申请日：2011-09-29
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Chong Soon Lim , Viktor Wahadaniah , Xuan Jing , Sue Mon Thet Naing
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Chong Soon Lim , Viktor Wahadaniah , Xuan Jing , Sue Mon Thet Naing
IPC分类号： H04N7/50 , H04N19/124 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/46 , H04N19/61 , H04N19/42 , H04N19/147 , H04N19/12 , H04N19/44
摘要： An image decoding method which can improve both image quality and coding efficiency is an image decoding method for decoding a coded stream which includes a plurality of processing units and a header for the processing units, the coded stream being generated by coding a moving picture, the processing units including at least one processing unit layered to be split into a plurality of smaller processing units, the image decoding method including specifying a hierarchical layer having a processing unit in which a parameter necessary for decoding is stored, by parsing hierarchy depth information stored in the header, and decoding the processing unit using the parameter stored in the processing unit located at the specified hierarchical layer.

82. 发明授权

US09143805B2 Method of image coding chrominance signal and method of image decoding chrominance signal 有权
标题翻译：色度信号的图像编码方法和图像解码色度信号的方法
公开(公告)号：US09143805B2
公开(公告)日：2015-09-22
申请号：US13546086
申请日：2012-07-11
申请人： Toru Matsunobu , Takahiro Nishi , Youji Shibahara , Hisao Sasai , Kyoko Tanikawa , Toshiyasu Sugio
发明人： Toru Matsunobu , Takahiro Nishi , Youji Shibahara , Hisao Sasai , Kyoko Tanikawa , Toshiyasu Sugio
IPC分类号： H04N19/86 , H04N19/176 , H04N19/70 , H04N19/126 , H04N19/14 , H04N19/154 , H04N19/593 , H04N19/186 , H04N19/36
CPC分类号： H04N19/86 , H04N19/126 , H04N19/14 , H04N19/154 , H04N19/176 , H04N19/186 , H04N19/36 , H04N19/593 , H04N19/70
摘要： An image coding method includes: generating a temporarily coded chrominance signal from the coded residual signal and the intra prediction chrominance signal; calculating a direct-current component of the input chrominance signal; calculating a direct-current component of the temporarily coded chrominance signal; calculating an offset value from the direct-current component of the input chrominance signal and the direct-current component of the temporarily coded chrominance signal; coding quantized coefficients, an intra prediction mode, and the offset value; and adding the offset value to the temporarily coded chrominance signal to generate a coded chrominance signal.
摘要翻译：图像编码方法包括：从编码残差信号和帧内预测色度信号产生临时编码的色度信号; 计算输入色度信号的直流分量; 计算临时编码的色度信号的直流分量; 从输入色度信号的直流分量和临时编码的色度信号的直流分量计算偏移值; 编码量化系数，帧内预测模式和偏移值; 并将偏移值加到临时编码的色度信号中，以产生编码的色度信号。

83. 发明授权

US09083981B2 Moving picture coding method and moving picture decoding method using a determination whether or not a reference block has two reference motion vectors that refer forward in display order with respect to a current picture 有权
标题翻译：运动图像编码方法和运动图像解码方法，使用确定参考块是否具有相对于当前图像以显示顺序向前引导的两个参考运动矢量
公开(公告)号：US09083981B2
公开(公告)日：2015-07-14
申请号：US13347721
申请日：2012-01-11
申请人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Hisao Sasai
发明人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Hisao Sasai
IPC分类号： H04N7/34 , H04N19/52
CPC分类号： H04N19/513 , H04N19/31 , H04N19/52 , H04N19/573
摘要： A moving picture coding apparatus includes: an inter prediction control unit which determines to code a motion vector using, among candidate predicted motion vectors, a candidate predicted motion vector having the least error with relative to a motion vector derived by motion estimation; a picture type determination unit which generates picture type information; a temporal direction vector calculation unit which derives a candidate predicted motion vector in temporal direct; and a co-located reference direction determination unit which generates, for each picture, a co-located reference direction flag.
摘要翻译：运动图像编码装置包括：帧间预测控制单元，其使用候选预测运动矢量中的运动矢量对相对于由运动估计导出的运动矢量具有最小误差的候选预测运动矢量进行编码; 图像类型确定单元，其生成图像类型信息; 时间方向矢量计算单元，其在时间上直接导出候选预测运动矢量; 以及共同定位的基准方向确定单元，其针对每个图像生成共同定位的参考方向标志。

84. 发明授权

US09049462B2 Image decoding method, image coding method, image decoding apparatus, image coding apparatus, and image coding and decoding apparatus 有权
标题翻译：图像解码方法，图像编码方法，图像解码装置，图像编码装置以及图像编码和解码装置
公开(公告)号：US09049462B2
公开(公告)日：2015-06-02
申请号：US13530397
申请日：2012-06-22
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio , Kyoko Tanikawa , Toru Matsunobu
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06K9/36 , G06K9/46 , H04N19/91 , H04N19/159 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/13 , H04N19/61 , H04N19/96
CPC分类号： H04N19/91 , H04N19/109 , H04N19/119 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/196 , H04N19/30 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/96
摘要： The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is “inter_pred_flag”.
摘要翻译：图像解码方法包括：从多个上下文中确定要处理的当前块中使用的上下文; 以及使用所确定的上下文对与当前块相对应的比特序列执行算术解码，其中在所述确定中：在使用当前块的相邻块的控制参数的条件下确定所述上下文，当所述信号类型为第一类型，相邻块是当前块的左块和上块; 并且在信号类型是第二类型的情况下，并且第二类型是“inter_pred_flag”的情况下，在不使用上部块的控制参数的条件下确定上下文。

85. 发明授权

US09049455B2 Image coding method of coding a current picture with prediction using one or both of a first reference picture list including a first current reference picture for a current block and a second reference picture list including a second current reference picture for the current block 有权
标题翻译：使用包括用于当前块的第一电流参考图像的第一参考图像列表和包括当前块的第二参考图像的第二参考图像列表中的一个或两者的预测来编码当前图像的图像编码方法
公开(公告)号：US09049455B2
公开(公告)日：2015-06-02
申请号：US13336353
申请日：2011-12-23
申请人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Hisao Sasai
发明人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Hisao Sasai
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/577 , H04N19/56 , H04N19/105 , H04N19/176 , H04N19/172 , H04N19/46 , H04N19/61 , H04N19/107 , H04N19/137 , H04N19/567 , H04N19/573 , H04N19/58 , H04N19/70 , H04N19/51
CPC分类号： H04N19/107 , H04N19/105 , H04N19/124 , H04N19/137 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/52 , H04N19/56 , H04N19/567 , H04N19/573 , H04N19/577 , H04N19/58 , H04N19/61 , H04N19/70
摘要： An image coding method includes: adding, to a candidate list, a first adjacent motion vector as a candidate for a predicted motion vector to be used for coding the current motion vector; selecting the predicted motion vector from the candidate list; and coding the current motion vector, wherein in the adding, the first adjacent motion vector indicating a position in a first reference picture included in a first reference picture list is added to the candidate list for the current motion vector indicating a position in a second reference picture included in a second reference picture list.
摘要翻译：图像编码方法包括：向候选列表添加第一相邻运动矢量作为用于编码当前运动矢量的预测运动矢量的候选; 从候选列表中选择预测运动矢量; 并且对当前运动矢量进行编码，其中在相加中，指示包括在第一参考图像列表中的第一参考图像中的位置的第一相邻运动矢量被添加到用于指示第二参考中的位置的当前运动矢量的候选列表图片包括在第二参考图片列表中。

86. 发明授权

US08953689B2 Decoding method and apparatus with candidate motion vectors 有权
标题翻译：具有候选运动矢量的解码方法和装置
公开(公告)号：US08953689B2
公开(公告)日：2015-02-10
申请号：US13482411
申请日：2012-05-29
申请人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Kyoko Tanikawa , Hisao Sasai , Toru Matsunobu
发明人： Toshiyasu Sugio , Takahiro Nishi , Youji Shibahara , Kyoko Tanikawa , Hisao Sasai , Toru Matsunobu
IPC分类号： H04N7/12 , H04N19/105 , H04N19/51 , H04N19/56 , H04N19/107 , H04N19/503
CPC分类号： H04N19/513 , H04N19/105 , H04N19/107 , H04N19/503 , H04N19/52 , H04N19/56
摘要： An image coding method includes: determining a maximum number of merging candidates; deriving first merging candidates based on blocks spatially or temporally neighboring a current block; determining whether or not a total number of the first merging candidates is smaller than the maximum number; deriving, by making a combination out of the derived first merging candidates, a second merging candidate for bi-directional prediction when it is determined that the total number of the first merging candidates is smaller than the maximum number; selecting a merging candidate to be used for the coding of the current block from the first merging candidates and the second merging candidate; and coding, using the determined maximum number, an index for identifying the selected merging candidate, and attaching the coded index to the bitstream.
摘要翻译：图像编码方法包括：确定最大合并候选数; 基于与当前块空间或时间相邻的块来导出第一合并候选; 确定第一合并候选的总数是否小于最大数; 当确定所述第一合并候选的总数小于所述最大数目时，通过从所述导出的第一合并候选中进行组合而导出用于双向预测的第二合并候选; 从第一合并候选和第二合并候选中选择要用于当前块的编码的合并候选; 以及使用所确定的最大数目编码用于识别所选择的合并候选的索引，以及将编码索引附加到比特流。

87. 发明授权

US08787467B2 Filtering method for performing deblocking filtering on a boundary between an intra pulse code modulation block and a non-intra pulse code modulation block which are adjacent to each other in an image 有权
标题翻译：在图像中彼此相邻的帧内脉码调制块与非帧内脉码调制块之间的边界进行去块滤波的滤波方法
公开(公告)号：US08787467B2
公开(公告)日：2014-07-22
申请号：US13551686
申请日：2012-07-18
申请人： Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio
发明人： Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N7/26 , H04N7/50
CPC分类号： H04N19/86 , H04N19/117 , H04N19/124 , H04N19/14 , H04N19/176 , H04N19/184 , H04N19/61
摘要： A filtering method is for performing deblocking filtering on the boundary between an IPCM block and a non-IPCM block adjacent to each other in an image and including: determining a first quantization parameter for the non-IPCM block; determining a second quantization parameter for the IPCM block, using the first quantization parameter; determining a filter strength for the boundary, using the first quantization parameter and the second quantization parameter; and performing the deblocking filtering on the boundary using the determined filter strength.
摘要翻译：一种滤波方法，用于对图像中彼此相邻的IPCM块和非IPCM块之间的边界进行去块滤波，包括：确定非IPCM块的第一量化参数; 使用所述第一量化参数确定所述IPCM块的第二量化参数; 使用所述第一量化参数和所述第二量化参数来确定所述边界的滤波器强度; 并使用所确定的滤波器强度在边界上执行去块滤波。

88. 发明授权

US08718149B2 Image coding method and image decoding method 有权
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US08718149B2
公开(公告)日：2014-05-06
申请号：US13148957
申请日：2010-10-13
申请人： Takeshi Tanaka , Hisao Sasai
发明人： Takeshi Tanaka , Hisao Sasai
IPC分类号： H04N7/26 , H04N7/50 , H03M7/40
CPC分类号： H04N19/44 , H03M7/4006 , H03M7/4018 , H04N19/13 , H04N19/176 , H04N19/194 , H04N19/46 , H04N19/61 , H04N19/91
摘要： An image coding method for improving coding efficiency by using more appropriate probability information is provided. The image coding method includes: a first coding step of coding a first set of blocks included in a first region sequentially based on first probability information; and a second coding step of coding a second set of blocks included in a second region sequentially based on second probability information. In the first coding step, the first probability information is updated depending on data of a target block to be coded, after coding the target block and before coding a next target block. In the second coding step, the second probability information is updated depending on the first probability information updated in the first coding step, before coding the first target block.
摘要翻译：提供了一种通过使用更合适的概率信息来提高编码效率的图像编码方法。图像编码方法包括：第一编码步骤，基于第一概率信息，顺序地编码包括在第一区域中的第一组块; 以及第二编码步骤，基于第二概率信息顺序地对包括在第二区域中的第二组块进行编码。在第一编码步骤中，根据要编码的目标块的数据，在对目标块进行编码之后并在编码下一个目标块之前更新第一概率信息。在第二编码步骤中，在对第一目标块进行编码之前，根据在第一编码步骤中更新的第一概率信息来更新第二概率信息。

89. 发明授权

US08687904B2 Image coding method, image coding apparatus, image decoding method, image decoding apparatus, and image coding and decoding apparatus which include arithmetic coding or arithmetic decoding 有权
标题翻译：图像编码方法，图像编码装置，图像解码方法，图像解码装置以及包括算术编码或算术译码的图像编码解码装置
公开(公告)号：US08687904B2
公开(公告)日：2014-04-01
申请号：US13348075
申请日：2012-01-11
申请人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio
发明人： Hisao Sasai , Takahiro Nishi , Youji Shibahara , Toshiyasu Sugio
IPC分类号： G06K9/36 , G06K9/46 , H03M7/40 , H04N7/26
CPC分类号： H03M7/4018 , H04N19/13 , H04N19/136 , H04N19/18 , H04N19/60 , H04N19/61 , H04N19/91
摘要： An image coding method includes: frequency-transforming image data to generate a unit of processing in a frequency domain; binarizing a coefficient included in the unit of processing, to generate a binary signal; determining, as a context for a binary signal, one or more contexts common to a plurality of the coefficients included in a segment which includes the binarized coefficient, the segment being one of a plurality of segments obtained by dividing the unit of processing; performing binary arithmetic coding on the binary signal according to probability information corresponding to the determined context; and updating, based on the binary signal, the probability information corresponding to the determined context.
摘要翻译：图像编码方法包括：对图像数据进行频率变换，生成频域的处理单位; 二值化包含在处理单元中的系数，以产生二进制信号; 确定作为二进制信号的上下文，包括包括在二进制化系数的段中的多个系数共同的一个或多个上下文，该段是通过划分处理单位而获得的多个段中的一个; 根据对应于所确定的上下文的概率信息对二进制信号执行二进制算术编码; 以及基于所述二进制信号更新与所确定的上下文相对应的概率信息。

90. 发明授权

US08660375B2 Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus 有权
标题翻译：图像编码方法，图像解码方法，图像编码装置，图像解码装置以及图像编码和解码装置
公开(公告)号：US08660375B2
公开(公告)日：2014-02-25
申请号：US13400793
申请日：2012-02-21
申请人： Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Takahiro Nishi , Youji Shibahara , Hisao Sasai , Toshiyasu Sugio
发明人： Chong Soon Lim , Viktor Wahadaniah , Sue Mon Thet Naing , Takahiro Nishi , Youji Shibahara , Hisao Sasai , Toshiyasu Sugio
IPC分类号： G06K9/46
CPC分类号： H04N19/184 , G06T9/00 , G06T9/004 , G11B20/10 , G11B20/10527 , H04N19/103 , H04N19/152 , H04N19/159 , H04N19/176 , H04N19/40 , H04N19/426 , H04N19/44 , H04N19/46 , H04N19/593 , H04N19/70 , H04N19/85
摘要： The image coding method is used to code images to generate a coded stream. The image coding method includes: writing, into a sequence parameter set in the coded stream to be generated, a first parameter representing a first bit-depth that is a bit-depth of a reconstructed sample in the images; and writing, into the sequence parameter set, a second parameter which is different from the first parameter and represents a second bit-depth that is a bit-depth of an Intra Pulse Code Modulation (IPCM) sample in the images.
摘要翻译：图像编码方法用于对图像进行编码以生成编码流。图像编码方法包括：将要生成的编码流中设置的序列参数写入表示作为图像中的重建样本的位深度的第一位深度的第一参数; 以及将与所述第一参数不同的第二参数写入所述序列参数集，并且表示作为所述图像中的脉冲内调制（IPCM）样本的位深度的第二位深度。

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