公开(公告)号：US08798147B2

公开(公告)日：2014-08-05

申请号：US13556583

申请日：2012-07-24

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

CPC分类号： H04N19/50 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/436 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

摘要： A moving picture coding method includes (i) transforming, for each of one or more second processing units included in the first processing unit, a moving picture signal in a spatial domain into a frequency domain coefficient and quantizing the frequency domain coefficient, and (ii) performing arithmetic coding on a luminance CBF flag indicating whether or not a quantized coefficient is included in the second processing unit in which transform and quantization are performed, wherein, in the arithmetic coding, a probability table for use in arithmetic coding is determined according to whether or not the size of the first processing unit is identical to the size of the second processing unit and whether or not the second processing unit has a predetermined maximum size.

摘要翻译： 运动图像编码方法包括：（i）对于包括在第一处理单元中的一个或多个第二处理单元中的每一个，将空间域中的运动图像信号变换为频域系数并量化频域系数，并且（ii 对用于表示量化系数是否包括在其中执行变换和量化的第二处理单元中的亮度CBF标志执行算术编码，其中在算术编码中，根据算术编码确定用于算术编码的概率表 第一处理单元的尺寸是否与第二处理单元的尺寸相同，以及第二处理单元是否具有预定的最大尺寸。

公开(公告)号：US20140169450A1

公开(公告)日：2014-06-19

申请号：US14239662

申请日：2012-08-24

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： H04N19/105

CPC分类号： H04N19/10 ,  H04N19/105 ,  H04N19/174 ,  H04N19/70

摘要： A method of encoding video including: writing a plurality of predetermined buffer descriptions into a sequence parameter set of a coded video bitstream; writing a plurality of updating parameters into a slice header of the coded video bitstream for selecting and modifying one buffer description out of the plurality of buffer descriptions; and encoding a slice into the coded video bitstream using the slice header and the modified buffer description.

摘要翻译： 一种编码视频的方法，包括：将多个预定缓冲器描述写入编码视频比特流的序列参数集; 将多个更新参数写入编码视频比特流的片头中，用于选择和修改多个缓冲器描述中的一个缓冲器描述; 以及使用片头和修改的缓冲器描述将片编码到编码视频比特流中。

公开(公告)号：US08620097B2

公开(公告)日：2013-12-31

申请号：US13568444

申请日：2012-08-07

申请人： Daisaku Komiya ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

发明人： Daisaku Komiya ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/124 ,  G06T9/00 ,  G06T9/005 ,  G06T9/007 ,  G06T9/008 ,  H04N19/13 ,  H04N19/134 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/60 ,  H04N19/70

摘要： An image coding method includes: dividing a picture into tiles; coding the tiles to generate pieces of coded data each of which corresponds to a different one of the tiles; and generating a bitstream including the pieces of coded data. The coding of the tiles includes: generating a first code string by coding a first tile which is one of the tiles, without referring to coding information used in coding another one of the tiles; and adding a bit string after the first code string to make a bit length of first coded data which is one of the pieces of coded data, a multiple of a predetermined N bits, N being an integer greater than or equal to 2.

摘要翻译： 图像编码方法包括：将图像划分成瓦片; 对瓦片进行编码以生成各自对应于不同瓦片的编码数据; 以及生成包括所述编码数据的比特流。 瓦片的编码包括：通过对作为瓦片之一的第一瓦片进行编码来生成第一代码串，而不参考在编码另一个瓦片中使用的编码信息; 并且在第一代码串之后添加位串以使得作为编码数据之一的第一编码数据的位长度，预定N位的倍数，N是大于或等于2的整数。

公开(公告)号：US20130058408A1

公开(公告)日：2013-03-07

申请号：US13605043

申请日：2012-09-06

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Hai Wei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

IPC分类号： H04N7/32

CPC分类号： H04N19/50 ,  H04N19/105 ,  H04N19/15 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/30 ,  H04N19/58 ,  H04N19/70

摘要： An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; selecting one of the buffer descriptions for each processing unit that is a picture or a slice, and writing buffer description selecting information for specifying the selected buffer description, into a first header of the processing unit which is included in the coded bitstream; and coding the processing unit using the selected buffer description, and the buffer description defining information includes long-term information for identifying, among a plurality of reference pictures indicated in the buffer descriptions, a reference picture to be assigned as a long-term reference picture.

公开(公告)号：US20130034164A1

公开(公告)日：2013-02-07

申请号：US13638681

申请日：2011-04-01

申请人： Youji Shibahara ,  Steffen Wittmann ,  Takahiro Nishi ,  Hisao Sasai ,  Kyoko Tanikawa

发明人： Youji Shibahara ,  Steffen Wittmann ,  Takahiro Nishi ,  Hisao Sasai ,  Kyoko Tanikawa

IPC分类号： H04N7/28

CPC分类号： H04N19/51

摘要： A motion compensation method includes: specifying, using a motion vector of a current block, a reference image area for use in motion compensation for each of the current block and a current sub-block spatially adjacent to the current block, to read out reference pixel data of the specified area from a frame memory; performing motion compensation using the reference pixel data read out in the readout, to generate prediction pixel data for each of the current block and the current sub-block; outputting the prediction pixel data for the current block, generated in the performing of motion compensation; and temporarily storing the prediction pixel data for the current sub-block, generated in the performing of motion compensation.

摘要翻译： 运动补偿方法包括：使用当前块的运动矢量指定用于当前块中的每一个的运动补偿的参考图像区域和与当前块空间相邻的当前子块，以读出参考像素 来自帧存储器的指定区域的数据; 使用在读出中读出的参考像素数据执行运动补偿，以生成当前块和当前子块中的每一个的预测像素数据; 输出在执行运动补偿中产生的当前块的预测像素数据; 并且暂时存储在执行运动补偿中产生的当前子块的预测像素数据。

公开(公告)号：US20130003850A1

公开(公告)日：2013-01-03

申请号：US13536309

申请日：2012-06-28

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： H04N7/32 ,  H04N7/36 ,  H04N7/34

CPC分类号： H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573 ,  H04N19/70 ,  H04N19/96

摘要： An image decoding method for decoding, on a block-by-block basis, image data included in a coded bitstream includes: obtaining a fixed number of merging candidates each of which is a candidate set of a prediction direction, a motion vector, and a reference picture index which are to be referenced in decoding of a current block (S303); and obtaining, from the coded bitstream, an index for identifying a merging candidate for the current block (S304), wherein the fixed number of merging candidates include: one or more first candidates each derived based on a prediction direction, a motion vector, and a reference picture index which have been used for decoding a neighboring block spatially or temporally neighboring the current block; and one or more second candidates having a predetermined fixed. The fixed number is greater than or equal to two.

公开(公告)号：US20120328207A1

公开(公告)日：2012-12-27

申请号：US13529246

申请日：2012-06-21

申请人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

发明人： Hisao Sasai ,  Takahiro Nishi ,  Youji Shibahara ,  Toshiyasu Sugio ,  Kyoko Tanikawa ,  Toru Matsunobu ,  Kengo Terada

IPC分类号： G06K9/36

CPC分类号： H04N19/91 ,  H04N19/103 ,  H04N19/13 ,  H04N19/136 ,  H04N19/17 ,  H04N19/61

摘要： An image decoding method is an image decoding method of decoding coded image data, including selecting, based on a type of a decoding target signal, an arithmetic decoding method that is used to decode the decoding target signal, from among a plurality of arithmetic decoding methods that include: a first arithmetic decoding method which is performed based on a symbol occurrence probability obtained according to a context, and which involves update of the symbol occurrence probability according to a decoding symbol; and a second arithmetic decoding method which is performed based on a symbol occurrence probability obtained according to a context, and which maintains the symbol occurrence probability that is other than 50%.

摘要翻译： 图像解码方法是对编码图像数据进行解码的图像解码方法，包括从多个算术解码方法中选择基于解码对象信号的类型的解码对象信号的解码方法， 包括：基于根据上下文获得的符号发生概率执行并且涉及根据解码符号更新符号发生概率的第一算术解码方法; 以及第二算术解码方法，其基于根据上下文获得的符号发生概率进行，并且维持不到50％的符号发生概率。

公开(公告)号：US20120328012A1

公开(公告)日：2012-12-27

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： H04N7/32 ,  H04N7/26

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 to 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; 并且在上一个块的控制参数不被使用的条件下，当信号类型是第二类型而第二种类型是inter_pred_flag时确定上下文。

公开(公告)号：US09363525B2

公开(公告)日：2016-06-07

申请号：US13534363

申请日：2012-06-27

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： H04N7/26 ,  H04M7/00 ,  H04N19/463 ,  H04N19/176 ,  H04N19/70 ,  H04N19/13 ,  H04N19/134 ,  H04N19/593 ,  H04N19/159 ,  H04N19/12

CPC分类号： H04N19/134 ,  H04N19/12 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70

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 “no_residual_data_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且第二类型是“no_residual_data_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。

公开(公告)号：US09167247B2

公开(公告)日：2015-10-20

申请号：US13810736

申请日：2012-05-18

申请人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Jin Li ,  Haiwei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Kyoko Tanikawa ,  Toshiyasu Sugio ,  Toru Matsunobu

发明人： Viktor Wahadaniah ,  Chong Soon Lim ,  Sue Mon Thet Naing ,  Jin Li ,  Haiwei Sun ,  Takahiro Nishi ,  Hisao Sasai ,  Youji Shibahara ,  Kyoko Tanikawa ,  Toshiyasu Sugio ,  Toru Matsunobu

IPC分类号： H04N19/61 ,  H04N19/103 ,  H04N19/50 ,  H04N19/176 ,  H04N19/46 ,  H04N19/186

CPC分类号： H04N19/50 ,  H04N19/103 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/61

摘要： Methods and apparatuses for performing inter-color-plane prediction with adaptability to various existing video content representations are provided. A plurality of predetermined rescaling schemes based on a color plane format is selected. A first block of original samples of a first color plane is encoded into a compressed bitstream. A block of reconstructed samples of the first color plane is reconstructed. An inter-color-plane prediction process is performed to produce samples of a second color plane. Said block of prediction samples of the second color plane is subtracted from a second block of original samples of the second color plane to produce a block of residual samples of the second color plane where the positions of the first block and the second block of original samples are aligned. Finally, the block of residual samples of the second color plane is encoded.

摘要翻译： 提供了用于对各种现有视频内容表示适应性进行彩色间预测的方法和装置。 选择基于彩色平面格式的多个预定重定标方案。 将第一颜色平面的原始样本的第一块编码为压缩比特流。 重建第一色平面的重建样本块。 执行色间平面预测处理以产生第二色平面的样本。 从第二颜色平面的原始样本的第二块中减去所述第二颜色平面的预测样本块，以产生第二颜色平面的残差样本块，其中第一块和第二块原始样本的位置 对齐。 最后，编码第二色平面的残差样本块。