公开(公告)号：US20150030083A1

公开(公告)日：2015-01-29

申请号：US14511467

申请日：2014-10-10

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： 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: H04N19/423 ,  H04N19/44

CPC classification number: H04N19/134 ,  H04N19/105 ,  H04N19/115 ,  H04N19/119 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/42 ,  H04N19/423 ,  H04N19/44 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

Abstract: An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; writing, into the sequence parameter set, reference list description defining information for defining a plurality of reference list descriptions corresponding to the buffer descriptions; and writing, into a first header of each processing unit which is included in a coded bitstream, buffer description selecting information for specifying a selected buffer description.

Abstract translation: 图像编码方法包括：向序列参数集写入定义用于定义多个缓冲器描述的信息的缓冲器描述; 向所述序列参数集中写入参考列表描述定义用于定义与所述缓冲器描述相对应的多个参考列表描述的信息; 并且将包含在编码比特流中的每个处理单元的第一标题写入用于指定所选择的缓冲器描述的缓冲器描述选择信息。

公开(公告)号：US20150003534A1

公开(公告)日：2015-01-01

申请号：US14490910

申请日：2014-09-19

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU ,  Kengo TERADA

IPC: H04N19/51 ,  H04N19/583 ,  H04N19/44

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/137 ,  H04N19/15 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/44 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/567 ,  H04N19/593 ,  H04N19/61

Abstract: A moving picture coding apparatus includes an intra-inter prediction unit which calculates a second motion vector by performing a scaling process on a first motion vector of a temporally neighboring corresponding block, when selectively adding, to a list, a motion vector of each of one or more corresponding blocks each of which is either a block included in a current picture to be coded and spatially neighboring a current block to be coded or a block included in a picture other than the current picture and temporally neighboring the current block, determines whether the second motion vector has a magnitude that is within a predetermined magnitude or not within the predetermined magnitude, and adds the second motion vector to the list when the intra-inter prediction unit determines that the second motion vector has a magnitude that is within the predetermined magnitude range.

公开(公告)号：US20140348229A1

公开(公告)日：2014-11-27

申请号：US14456071

申请日：2014-08-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC: H04N19/13 ,  H04N19/60 ,  H04N19/124

CPC classification number: H04N19/50 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/436 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

Abstract: 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.

Abstract translation: 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：US20140341478A1

公开(公告)日：2014-11-20

申请号：US14338417

申请日：2014-07-23

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU ,  Kengo TERADA

IPC: H04N19/436 ,  H04N19/80

CPC classification number: H04N19/174 ,  H04N19/117 ,  H04N19/127 ,  H04N19/436 ,  H04N19/44 ,  H04N19/463 ,  H04N19/70

Abstract: An image encoding method including: a constraint information generating step of generating tile constraint information indicating whether or not there is a constraint in filtering on boundaries between adjacent tiles among a plurality of tiles obtained by dividing a picture, and storing the tile constraint information into a sequence parameter set; and a filter information generating step of generating, for each of the boundaries, one of a plurality of filter information items respectively indicating whether or not filtering is executed on the boundaries, and storing the plurality of filter information items into a plurality of picture parameter sets, wherein, in the filter information generating step, the plurality of filter information items which indicate identical content are generated when the tile constraint information indicates that there is the constraint in the filtering.

Abstract translation: 一种图像编码方法，包括：约束信息生成步骤，生成表示对通过划分图像而获得的多个图块之间是否存在对相邻图像之间的边界进行滤波的约束的图块约束信息，并将图块约束信息存储为 序列参数集; 以及滤波器信息生成步骤，对于每个所述边界，分别指示是否在所述边界上执行滤波的多个滤波器信息项之一，并将所述多个滤波器信息项存储到多个图像参数组中 其特征在于，在所述滤波器信息生成步骤中，当所述瓦片约束信息表示所述滤波中存在约束时，生成表示相同内容的多个滤波器信息项。

公开(公告)号：US20140341286A1

公开(公告)日：2014-11-20

申请号：US14448202

申请日：2014-07-31

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC: H04N19/593 ,  H04N19/136 ,  H04N19/44

CPC classification number: H04N19/593 ,  G06T9/004 ,  H04N19/13 ,  H04N19/136 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44 ,  H04N19/91

Abstract: An image decoding device includes a processor and storage configured to receive a bitstream from a server based on an instruction sent from an apparatus, decode an image on a block-by-block basis, from the bitstream and send the image to a display apparatus. The decoding includes obtaining first, second, third and fourth data, where context adaptive binary arithmetic decoding is performed on the first data, bypass decoding is performed on the second data, context adaptive binary arithmetic decoding is performed on the third data, and bypass decoding is separately performed on the fourth data. Four luma intra prediction modes are derived from a respective one of four luma context-dependent segments and a corresponding one of four luma context-independent segments for four subblocks in an image block, and one chroma intra prediction mode is derived from one chroma context-dependent segment and one chroma context-independent segment for the image block.

Abstract translation: 图像解码装置包括处理器和存储器，其被配置为基于从装置发送的指令从服务器接收比特流，并且逐帧地将图像从比特流解码，并将图像发送到显示装置。 解码包括获得第一，第二，第三和第四数据，其中对第一数据执行上下文自适应二进制算术解码，对第二数据执行旁路解码，对第三数据执行上下文自适应二进制算术解码，并且进行旁路解码 分别对第四数据执行。 四个亮度帧内预测模式从四个亮度上下文相关片段中的相应一个和四个子块上下文无关片段中的相应一个导出，用于图像块中的四个子块，并且一个色度帧内预测模式从一个色度上下文 - 相关段和图像块的一个色度上下文无关段。

公开(公告)号：US20140314153A1

公开(公告)日：2014-10-23

申请号：US14317171

申请日：2014-06-27

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Viktor WAHADANIAH ,  Chong Soon LIM ,  Sue Mon Thet NAING ,  Hai Wei SUN ,  Toshiyasu SUGIO ,  Takahiro NISHI ,  Hisao SASAI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Toru MATSUNOBU ,  Kengo TERADA

IPC: H04N19/583

CPC classification number: H04N19/56 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/58 ,  H04N19/61

Abstract: An image coding method includes: deriving a candidate for a motion vector predictor from a co-located motion vector; adding the candidate to a list; selecting the motion vector predictor from the list; and coding a current block and coding a current motion vector, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.

公开(公告)号：US20140301444A1

公开(公告)日：2014-10-09

申请号：US14304274

申请日：2014-06-13

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC: H04N19/103

CPC classification number: H04N19/13 ,  H04N19/103 ,  H04N19/105 ,  H04N19/136 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/583 ,  H04N19/70 ,  H04N19/91

Abstract: The image coding method includes: determining a context in a current block in the image, from among a plurality of contexts; and performing arithmetic coding on the control parameter for the current block to generate a bitstream corresponding to the current block, 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 (i) “merge_flag”, (ii) “ref_idx_l0” or “ref_idx_l1”, (iii) “inter_pred_flag”, (iv) “mvd_l0” or “mvd_l1”, (v) “no_residual_data_flag”, (vi) “intra_chroma_pred_mode”, (vii) “cbf_luma”, and (viii) “cbf_cb” or “cbf_cr”.

Abstract translation: 图像编码方法包括：从多个上下文中确定图像中的当前块中的上下文; 对当前块的控制参数进行算术编码，生成对应于当前块的比特流，其中在确定中：在使用当前块的相邻块的控制参数的条件下确定上下文，当信号 类型是第一类型，相邻块是当前块的左块和上块; 并且当信号类型是第二类型时，在上限块的控制参数的条件下确定上下文，并且第二类型是（i）“merge_flag”，（ii）“ref_idx_10”或“ref_idx_l1 “，（iii）”inter_pred_flag“，（iv）”mvd_l0“或”mvd_l1“，（v）”no_residual_data_flag“，（vi）”intra_chroma_pred_mode“，（vii）”cbf_luma“和（viii）”cbf_cb“ cbf_cr“。

公开(公告)号：US20160156909A1

公开(公告)日：2016-06-02

申请号：US15014374

申请日：2016-02-03

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toru MATSUNOBU ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Hisao SASAI ,  Kyoko TANIKAWA ,  Toshiyasu SUGIO ,  Kengo TERADA

IPC: H04N19/13 ,  H04N19/117 ,  H04N19/157 ,  H04N19/86 ,  H04N19/196 ,  H04N19/61 ,  H04N19/82 ,  G06T9/00 ,  H04N19/169

CPC classification number: H04N19/13 ,  G06T9/00 ,  H04N19/117 ,  H04N19/157 ,  H04N19/1887 ,  H04N19/196 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: An image coding method includes: performing context arithmetic coding to consecutively code (i) first information indicating whether or not to perform sample adaptive offset (SAO) processing for a first region of an image and (ii) second information indicating whether or not to use, in the SAO processing for the first region, information on SAO processing for a region other than the first region, the context arithmetic coding being arithmetic coding using a variable probability, the SAO processing being offset processing on a pixel value; and performing bypass arithmetic coding to code other information which is information on the SAO processing for the first region and different from the first information or the second information, after the first information and the second information are coded, the bypass arithmetic coding being arithmetic coding using a fixed probability.

Abstract translation: 图像编码方法包括：执行上下文算术编码以连续地编码（i）指示是否对图像的第一区域执行采样自适应偏移（SAO）处理的第一信息和（ii）指示是否使用的第二信息 在第一区域的SAO处理中，关于除了第一区域以外的区域的SAO处理的信息，上下文算术编码是使用可变概率的算术编码，SAO处理是对像素值的偏移处理; 并且在第一信息和第二信息被编码之后，执行旁路算术编码以对作为第一区域的SAO处理的信息和与第一信息或第二信息不同的其他信息进行编码，旁路算术编码是使用 固定概率。

公开(公告)号：US20160142718A1

公开(公告)日：2016-05-19

申请号：US15008738

申请日：2016-01-28

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toru MATSUNOBU ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Hisao SASAI ,  Kyoko TANIKAWA ,  Toshiyasu SUGIO ,  Kengo TERADA

IPC: H04N19/167 ,  H04N19/44 ,  H04N19/136

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/13 ,  H04N19/136 ,  H04N19/167 ,  H04N19/17 ,  H04N19/176 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70

Abstract: An image coding method includes performing: context arithmetic coding to consecutively code (i) first information indicating whether or not to perform SAO processing for a first region and (ii) second information indicating whether or not to use, in the SAO processing for the first region, information on SAO processing for a region except the first region; and bypass arithmetic coding to code other information after the first and second information are coded. The other information includes third information indicating whether the SAO processing is edge or band offset processing. In the performing of context arithmetic coding, an initial bit value in a bit string of a parameter indicating a type of the SAO processing is coded as the first information. In the performing of bypass arithmetic coding, a value of a next bit following the initial bit in the bit string of the parameter is coded as the third information.

Abstract translation: 图像编码方法包括执行：上下文算术编码，以连续地编码（i）指示是否对第一区域执行SAO处理的第一信息和（ii）指示是否在第一区域的SAO处理中使用的第二信息 区域，第一区域以外区域的SAO处理信息; 并且旁路算术编码以对第一和第二信息进行编码之后对其它信息进行编码。 其他信息包括指示SAO处理是边缘还是带偏移处理的第三信息。 在上下文算术编码的执行中，表示SAO处理的种类的参数的比特串中的初始比特值被编码为第一信息。 在执行旁路算术编码时，将参数的位串中的初始位之后的下一位的值编码为第三信息。

公开(公告)号：US20160127726A1

公开(公告)日：2016-05-05

申请号：US14995545

申请日：2016-01-14

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC: H04N19/109 ,  H04N19/176 ,  H04N19/196 ,  H04N19/159

CPC classification number: 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

Abstract: 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”.

Abstract translation: 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。