公开(公告)号：US20140029673A1

公开(公告)日：2014-01-30

申请号：US14041043

申请日：2013-09-30

Applicant: Panasonic Corporation

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

IPC: H04N7/36

CPC classification number: H04N19/521 ,  H04N19/13 ,  H04N19/17 ,  H04N19/184 ,  H04N19/1887 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/70 ,  H04N19/91

Abstract: An image coding method includes coding a motion vector difference indicating a difference between the motion vector and a predicted motion vector, wherein the coding includes: coding a first portion that is a part of a first component which is one of a horizontal component and a vertical component of the motion vector difference; coding a second portion that is a part of a second component which is different from the first component and is the other one of the horizontal component and the vertical component; coding a third portion that is a part of the first component and is different from the first portion; coding a fourth portion that is a part of the second component and is different from the second portion; and generating a code string which includes the first portion, the second portion, the third portion, and the fourth portion in the stated order.

公开(公告)号：US20130279568A1

公开(公告)日：2013-10-24

申请号：US13852161

申请日：2013-03-28

Applicant: Panasonic Corporation

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

IPC: H04N7/26

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/46 ,  H04N19/82

Abstract: An image coding method includes: obtaining a pixel signal of a current region to be processed; calculating offset information including at least one of a location from which the offset information for the current region is obtained, a total number of blocks which share the offset information, a pattern of partitioning the current region, a pixel classification method for classifying pixels into categories, a category index number of band offset, or an offset value; applying offset to the current region using the offset information, the offset being applied with adjustment to the offset value when a predetermined condition is satisfied; coding the offset information; outputting an offset-applied signal generated by the applying of offset; and controlling the applying of offset.

Abstract translation: 图像编码方法包括：获得要处理的当前区域的像素信号; 计算包括获得当前区域的偏移信息的位置中的至少一个的偏移信息，共享偏移信息的块的总数，分割当前区域的图案，用于将像素分类为像素的像素分类方法 ，带偏移的类别索引号或偏移值; 使用偏移信息对当前区域施加偏移，当满足预定条件时，通过调整偏移值来应用偏移; 编码偏移信息; 输出通过应用偏移产生的偏移施加信号; 并控制偏移的应用。

公开(公告)号：US20130266236A1

公开(公告)日：2013-10-10

申请号：US13906970

申请日：2013-05-31

Applicant: PANASONIC CORPORATION

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

IPC: G06T9/00

CPC classification number: H04N19/124 ,  G06T9/004 ,  H04N19/119 ,  H04N19/176 ,  H04N19/463 ,  H04N19/61 ,  H04N19/96

Abstract: An image coding method, comprising: subtracting a prediction signal from the input image signal for each coding unit, thereby generating respective prediction error signals; performing orthogonal transform and quantization on a corresponding one of the prediction error signals for each transform unit, eventually generating quantization coefficients; and coding pieces of management information indicating a structure of the transform units and the quantization coefficients into a tree structure. Each of the transform units corresponds to a corresponding one of leaf nodes in the tree structure. In the coding, for each leaf node, management information and a quantization coefficient are coded, eventually generating a coded signal in which the coded management information and the coded quantization coefficient are arranged in succession for each leaf node.

公开(公告)号：US20130107963A1

公开(公告)日：2013-05-02

申请号：US13659950

申请日：2012-10-25

Applicant: PANASONIC CORPORATION

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: H04N7/32

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：US20130101042A1

公开(公告)日：2013-04-25

申请号：US13652643

申请日：2012-10-16

Applicant: Panasonic Corporation

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

IPC: H04N7/32

Abstract: A picture coding method includes: performing a first derivation process for deriving a first merging candidate which includes a candidate set of a prediction direction, a motion vector, and a reference picture index for use in coding of a current block; performing a second derivation process for deriving a second merging candidate; selecting a merging candidate to be used in the coding of the current block from among the first and second merging candidates; and attaching an index for identifying the selected merging candidate to the bitstream; wherein the first derivation process is performed so that a total number of the first merging candidates does not exceed a predetermined number, and the second derivation process is performed when the total number of the first merging candidates is less than a predetermined maximum number of merging candidates.

Abstract translation: 图像编码方法包括：执行第一导出处理，用于导出包括用于当前块的编码的预测方向的候选组，运动矢量和参考图像索引的第一合并候选; 执行用于导出第二合并候选的第二推导过程; 从第一和第二合并候选中选择要用于当前块的编码中的合并候选; 以及将用于识别所选择的合并候选的索引附加到比特流; 其中执行所述第一导出处理使得所述第一合并候选的总数不超过预定数，并且当所述第一合并候选的总数小于预定最大合并候选数时执行所述第二导出处理 。

公开(公告)号：US20130101034A1

公开(公告)日：2013-04-25

申请号：US13654854

申请日：2012-10-18

Applicant: PANASONIC CORPORATION

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: H04N7/32

CPC classification number: H04N19/58 ,  H04N19/105 ,  H04N19/124 ,  H04N19/15 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/39 ,  H04N19/433 ,  H04N19/61 ,  H04N19/70

Abstract: An image coding method includes: writing, into a coded bitstream, buffer description defining information for defining a buffer description; constructing a default reference list; reorder pictures included in the default reference list; writing, into the coded bitstream, reference list reordering information for indicating details of the reordering; and coding an image using the buffer description and a reference list resulting from the reordering, and in the reference list reordering information, among the pictures, a picture to be reordered is specified using an index which is used in other processing in the image coding method.

Abstract translation: 图像编码方法包括：向编码比特流写入定义用于定义缓冲器描述的信息的缓冲器描述; 构建默认参考列表; 重新排序包含在默认参考列表中的图片; 将编码比特流写入用于指示重排序细节的参考列表重新排序信息; 以及使用由重排序得到的缓冲器描述和参考列表对图像进行编码，并且在参考列表重排序信息中，在图像中，使用在图像编码方法中的其他处理中使用的索引来指定要重新排序的图像 。

公开(公告)号：US20140247886A1

公开(公告)日：2014-09-04

申请号：US14275248

申请日：2014-05-12

Applicant: PANASONIC CORPORATION

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

IPC: H04N19/46 ,  H04N19/134 ,  H04N19/169 ,  H04N19/44

CPC classification number: H04N19/15 ,  G06T9/00 ,  H04N19/13 ,  H04N19/132 ,  H04N19/176 ,  H04N19/423 ,  H04N19/46 ,  H04N19/70

Abstract: An image decoding method of decoding units that are included in a picture is provided. The image decoding method decodes a first flag which indicates whether a removal time of encoded data from a buffer by a hypothetical decoder is set per unit. The buffer is for storing the encoded data. The image decoding method further decodes a second flag indicating whether an interval between removal times of the units is one of constant nd arbitrary when the removal times are set per unit. The image decoding method removes the encoded data from the buffer at the removal time, and decodes the removed encoded data.

Abstract translation: 提供了包括在图像中的解码单元的图像解码方法。 图像解码方法对第一标志进行解码，该标志指示每单位是否设置由假设解码器从缓冲器中的编码数据的去除时间。 缓冲区用于存储编码数据。 图像解码方法进一步解码指示当每单位设置移除时间时，单元的去除时间间隔是否为常数nd任意之一的第二标志。 图像解码方法在去除时从缓冲器中去除编码数据，并解码去除的编码数据。

公开(公告)号：US20140185672A1

公开(公告)日：2014-07-03

申请号：US14138335

申请日：2013-12-23

Applicant: Panasonic Corporation

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

IPC: H04N19/50

CPC classification number: H04N19/11 ,  H04N19/30

Abstract: An image encoding method includes: generating a first bitstream by encoding an input image, and a first decoded image by encoding and decoding the input image; and generating a second bitstream by encoding the input image using the first decoded image, and a second decoded image by encoding and decoding the input image; wherein the second decoded image has resolution or image quality higher than resolution or image quality of the first decoded image, the generating of a second bitstream and a second decoded image includes generating a prediction block for a current block by intra prediction, and in the generating of a prediction block, the prediction block is generated using (i) pixels included in the second decoded image as top and left reference pixels for the current block, and (ii) pixels included in the first decoded image as right and bottom reference pixels for the current block.

Abstract translation: 图像编码方法包括：通过对输入图像进行编码来生成第一比特流，以及通过对输入图像进行编码和解码来生成第一解码图像; 以及通过使用所述第一解码图像对所述输入图像进行编码来生成第二比特流，以及通过对所述输入图像进行编码和解码来生成第二解码图像; 其中，所述第二解码图像具有高于所述第一解码图像的分辨率或图像质量的分辨率或图像质量，所述第二比特流的生成和第二解码图像包括通过帧内预测生成当前块的预测块，并且在所述生成 使用（i）包含在第二解码图像中的像素作为当前块的上，左参考像素生成预测块，以及（ii）包括在第一解码图像中的像素作为右和底参考像素，用于 当前块。

公开(公告)号：US20140112389A1

公开(公告)日：2014-04-24

申请号：US14146028

申请日：2014-01-02

Applicant: Panasonic Corporation

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

IPC: H04N19/25 ,  H04N19/463 ,  H04N19/597 ,  H04N19/29 ,  H04N19/44 ,  H04N19/31 ,  H04N19/503

CPC classification number: H04N19/31 ,  H04N19/25 ,  H04N19/29 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/503 ,  H04N19/597

Abstract: Accordingly, a video encoding method, apparatus and other aspects are disclosed. A reference picture set is written into a header of the bit stream, the reference picture set including reference pictures, a time identifier, a usage identifier and at least one parameter representing at least one of scale and view. A reference picture list having one or more of the reference pictures is constructed. A block of the video is encoded from a reference picture associated with a reference index in the reference picture list. The reference index is written into the bit stream.

Abstract translation: 因此，公开了视频编码方法，装置和其他方面。 将参考图像集写入比特流的头部，参考图像集合包括参考图像，时间标识符，使用标识符和表示比例和视图中的至少一个的至少一个参数。 构成具有一个或多个参考图片的参考图片列表。 从与参考图像列表中的参考索引相关联的参考图像对视频的块进行编码。 引用索引被写入位流。

公开(公告)号：US20140079130A1

公开(公告)日：2014-03-20

申请号：US14087364

申请日：2013-11-22

Applicant: PANASONIC CORPORATION

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

IPC: H04N7/36

CPC classification number: H04N19/56 ,  H04N19/117 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577

Abstract: Obtaining one or more motion vector predictor candidates includes: (a1) generating a motion vector predictor candidate, based on motion vectors of first adjacent blocks adjacent to a block to be processed in a first direction; and (a2) generating a motion vector predictor candidate, based on motion vectors of second adjacent blocks adjacent to the block to be processed in a second direction, and step (a2) (S500) includes: (S520) determining whether the first adjacent blocks include an inter-predicted block; and (S530) searching for a motion vector on which scaling processing can be performed from among the motion vectors of the second adjacent blocks when it is determined that the first adjacent blocks do not include an inter-predicted block, and executing, when the motion vector on which scaling processing can be performed is obtained in the search, scaling processing on the motion vector obtained in the search.

Abstract translation: 获取一个或多个运动矢量预测器候选包括：（a1）基于与要在第一方向处理的块相邻的第一相邻块的运动矢量生成运动矢量预测器候选; （a2）根据第二方向的待处理块相邻的第二相邻块的运动矢量生成运动矢量预测器候选，步骤（a2）（S500）包括：（S520）确定第一相邻块 包括预测间块; 以及（S530）当确定第一相邻块不包括帧间预测块时，从第二相邻块的运动矢量中搜索可以执行缩放处理的运动矢量，并且当运动 在对搜索中获得的运动矢量的搜索，缩放处理中获得可执行缩放处理的矢量。