公开(公告)号：US20180278956A1

公开(公告)日：2018-09-27

申请号：US15996710

申请日：2018-06-04

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Tadamasa TOMA ,  Takahiro NISHI ,  Kengo TERADA ,  Yui KOASHI

IPC: H04N19/597 ,  H04N19/436

CPC classification number: H04N19/597 ,  G06T9/001 ,  G06T9/004 ,  H04N19/436 ,  H04N19/503 ,  H04N19/593

Abstract: Provided is a three-dimensional data encoding method capable of providing random access functionality for encoded three-dimensional data. The three-dimensional data encoding method is a three-dimensional data encoding method for encoding three-dimensional data, the method including: dividing the three-dimensional data into first processing units, each being a random access unit and being associated with three-dimensional coordinates; and encoding each of the first processing units to generate encoded three-dimensional data.

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：US20150245034A1

公开(公告)日：2015-08-27

申请号：US14708322

申请日：2015-05-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Kengo TERADA ,  Takahiro NISHI ,  Hisao SASAI ,  Satoshi YOSHIKAWA

IPC: H04N19/146 ,  H04N19/154 ,  H04N19/184 ,  H04N19/30 ,  H04N19/105

CPC classification number: H04N19/146 ,  H04N19/105 ,  H04N19/132 ,  H04N19/154 ,  H04N19/156 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/31

Abstract: A video encoding method of performing scalable encoding on input video includes: determining a total number of layers of the scalable encoding to be less than or equal to a maximum layer count determined according to a frame rate; and performing the scalable encoding on the input video to generate a bitstream, using the determined total number of layers.

Abstract translation: 对输入视频执行可分级编码的视频编码方法包括：将所述可分级编码的层数总数确定为小于或等于根据帧速率确定的最大层​​数; 以及在所述输入视频上执行所述可分级编码以使用确定的总层数生成比特流。

公开(公告)号：US20150063446A1

公开(公告)日：2015-03-05

申请号：US14533151

申请日：2014-11-05

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/18 ,  H04N19/129 ,  H04N19/105

CPC classification number: H04N19/18 ,  H04N19/105 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/463 ,  H04N19/61

Abstract: A moving picture encoding method for increasing coding efficiency includes: determining whether or not to apply orthogonal transformation, to calculate a value of an orthogonal transform skip flag; performing the orthogonal transformation on a prediction residual according to the value of the orthogonal transform skip flag, to calculate at least one orthogonal transform coefficient; performing quantization on at least the one orthogonal transform coefficient, to calculate at least one quantized coefficient; performing variable-length encoding on the orthogonal transform skip flag; and changing a scan order for at least the one quantized coefficient according to the value of the orthogonal transform skip flag, and performing variable-length encoding on at least the one quantized coefficient in the scan order after the change.

Abstract translation: 一种用于提高编码效率的运动图像编码方法包括：确定是否应用正交变换，以计算正交变换跳过标志的值; 根据正交变换跳过标志的值对预测残差执行正交变换，以计算至少一个正交变换系数; 至少对一个正交变换系数进行量化，计算至少一个量化系数; 对正交变换跳过标志执行可变长度编码; 以及根据所述正交变换跳过标志的值改变至少所述一个量化系数的扫描顺序，以及在所述改变之后对所述扫描顺序中的至少一个量化系数进行可变长度编码。

公开(公告)号：US20140341298A1

公开(公告)日：2014-11-20

申请号：US14453917

申请日：2014-08-07

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: H04N19/51 ,  H04N19/583

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52

Abstract: An image coding method includes: deriving a candidate for a motion vector predictor from a neighboring motion vector; adding the candidate to a list; selecting a motion vector predictor from the list; coding a current block; and coding a current motion vector. In the deriving, the candidate is derived according to a first derivation scheme when each of a current reference picture and a neighboring reference picture is determined to be a long-term reference picture, and the candidate is derived according to a second derivation scheme when each of a current reference picture and a neighboring reference picture is determined to be a short-term reference picture.

公开(公告)号：US20160173911A1

公开(公告)日：2016-06-16

申请号：US15050837

申请日：2016-02-23

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/91

CPC classification number: H04N19/44 ,  H04N19/13 ,  H04N19/167 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/90 ,  H04N19/91

Abstract: An image coding method for coding an image on a block-by-block basis, includes: selecting, for each of a plurality of sub-blocks included in a coding-target block and each including a plurality of coefficients, a context for performing arithmetic coding on a parameter indicating a coding-target coefficient included in the sub-block from a context set corresponding to the sub-block, based on at least one reference coefficient located around the coding-target coefficient, the coding-target block being a transform unit; and performing arithmetic coding on the parameter indicating the coding-target coefficient using probability information about the selected context, wherein, in the selecting, the context is selected from the context set, the context set corresponding to a sum of (i) a value indicating a position in a horizontal direction of the sub-block in the coding-target block and (ii) a value indicating a position in a vertical direction of the sub-block in the coding-target block.

Abstract translation: 一种用于逐块地对图像进行编码的图像编码方法包括：针对包括在编码对象块中并且包括多个系数的多个子块中的每个子块选择用于执行算术的上下文 基于位于所述编码对象系数周围的至少一个参考系数，对从所述子块对应的上下文集合中指示包含在所述子块中的编码对象系数的参数进行编码，所述编码对象块是变换 单元; 以及使用关于所选择的上下文的概率信息对表示编码目标系数的参数进行算术编码，其中，在所述选择中，从所述上下文集中选择所述上下文，所述上下文集对应于（i）表示 编码对象块中的子块的水平方向的位置和（ii）表示编码对象块中的子块的垂直方向的位置的值。

公开(公告)号：US20150271519A1

公开(公告)日：2015-09-24

申请号：US14729321

申请日：2015-06-03

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/56 ,  H04N19/593 ,  H04N19/52

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.

Abstract translation: 运动图像编码装置包括：帧内预测单元，其通过对时间上相邻的对应块的第一运动矢量执行缩放处理来计算第二运动矢量，当选择性地向列表中添加每个运动矢量的运动矢量时， 或更多个对应的块，每个块是包括在要编码的当前图像中的块，并且与要编码的当前块空间相邻的块或包含在除了当前图像之外的图像中并且在时间上与当前块相邻的块中的块，确定是否 第二运动矢量具有在预定幅度内或不在预定幅度内的幅度，并且当帧内帧间预测单元确定第二运动矢量具有在预定幅度内的幅度时，将第二运动矢量加到列表中 范围。

公开(公告)号：US20150222915A1

公开(公告)日：2015-08-06

申请号：US14686838

申请日：2015-04-15

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/44 ,  H04N19/186 ,  H04N19/60 ,  H04N19/122

CPC classification number: H04N19/176 ,  G06T9/007 ,  H04N19/122 ,  H04N19/136 ,  H04N19/186 ,  H04N19/44 ,  H04N19/60 ,  H04N19/70

Abstract: An image coding method of coding an image on a per coding unit basis, the method comprising: applying a frequency transform to luminance data and chrominance data of transform units in the coding unit including predetermined blocks each corresponding to one or more of the transform units; and coding the luminance data and the chrominance data to which the frequency transform has been applied to generate a bitstream in which the luminance data and the chrominance data are grouped on a per predetermined block basis.

公开(公告)号：US20150156512A1

公开(公告)日：2015-06-04

申请号：US14609811

申请日：2015-01-30

Applicant: Panasonic Intellectual Property Corporation of America

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

IPC: H04N19/60 ,  H04N19/137 ,  H04N19/136

CPC classification number: H04N19/186 ,  G06T9/007 ,  H04N19/119 ,  H04N19/122 ,  H04N19/136 ,  H04N19/137 ,  H04N19/157 ,  H04N19/176 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: An image coding method in which a chroma component and a luma component of an input image including one or more transform blocks are transformed to code the input image. The luma component has the same size as the current transform block. The chroma component is smaller than the current transform block. In the method, when the current transform block has a first minimum size, the chroma component is transformed on a basis of a block resulting from binding a plurality of the chroma blocks to has the same size as the luma block, and when the current transform block has a size other than the first minimum size, a CBF flag indicating whether or not coefficients of the chroma component include a non-zero coefficient is not coded.

Abstract translation: 一种图像编码方法，其中变换包括一个或多个变换块的输入图像的色度分量和亮度分量以对输入图像进行编码。 亮度分量具有与当前变换块相同的大小。 色度分量小于当前的变换块。 在该方法中，当当前变换块具有第一最小尺寸时，基于由多个色块组合而得到的块变换为具有与亮度块相同的大小，并且当当前变换 块的尺寸除了第一最小尺寸之外，CBF标志指示色度分量的系数是否包括非零系数不被编码。