公开(公告)号：EP2717575A4

公开(公告)日：2014-10-15

申请号：EP12792164

申请日：2012-05-24

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  MATSUNOBU TORU

IPC: H04N7/32

CPC classification number: H04N19/139 ,  H04N19/102 ,  H04N19/105 ,  H04N19/13 ,  H04N19/134 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/51 ,  H04N19/52 ,  H04N19/577 ,  H04N19/70

Abstract: An image coding method for coding an image on a block-by-block basis to generate a bitstream includes: deriving, as a first merging candidate, a merging candidate which is a combination of a prediction direction, a motion vector, and a reference picture index for use in coding of the current block (S201); deriving, as a second merging candidate, a merging candidate having a motion vector which is a predetermined vector (S202); selecting a merging candidate to be used for the coding of the current block from the derived first merging candidate and the derived second merging candidate (S203); and attaching an index for identifying the selected merging candidate to the bitstream (S204).

公开(公告)号：EP2665264A4

公开(公告)日：2016-04-27

申请号：EP12733945

申请日：2012-01-12

Applicant: PANASONIC IP CORP AMERICA

Inventor： SASAI HISAO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SUGIO TOSHIYASU

IPC: H03M7/40 ,  H04N19/13 ,  H04N19/176 ,  H04N19/61 ,  H04N19/91

CPC classification number: H04N19/13 ,  H03M7/4018 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/61 ,  H04N19/91

Abstract: Provided are an image coding method, an image coding apparatus, an image coding apparatus, an image decoding method, an image decoding apparatus, and image coding and decoding apparatus. The image coding method comprising: obtaining current signals to be coded of each of the processing units of the image data (S401); generating a binary signal by performing binarization on each of the current signals to be coded (S402); selecting a context for each of the current signals to be coded from among a plurality of contexts (S403); performing arithmetic coding of the binary signal by using coded probability information associated with the context selected in the selecting (S404); and updating the coded probability information based on the binary signal (S405), wherein, in the selecting, the context for the current signal to be coded is selected, as a shared context, for a signal which is included in one of a plurality of processing units and has a size different from a size of the processing unit including the current signal to be coded.

公开(公告)号：EP2858354A4

公开(公告)日：2015-04-29

申请号：EP13793080

申请日：2013-05-17

Applicant: PANASONIC IP CORP AMERICA

Inventor： SASAI HISAO ,  TERADA KENGO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU

IPC: H04N19/70 ,  H04N19/463 ,  H04N19/82 ,  H04N19/91

CPC classification number: H04N19/132 ,  H04N19/00127 ,  H04N19/105 ,  H04N19/463 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

Abstract: A moving picture coding method includes: performing context adaptive binary arithmetic coding in which a variable probability value is used, on first information among multiple types of sample adaptive offset (SAO) information used for SAO that is a process of assigning an offset value to a pixel value of a pixel included in an image generated by coding the input image (S11); and continuously performing bypass arithmetic coding in which a fixed probability value is used, on second information and third information among the multiple types of the SAO information (S12), wherein the coded second and third information are placed after the coded first information in the bit stream.

公开(公告)号：EP2847996A4

公开(公告)日：2015-04-29

申请号：EP13787534

申请日：2013-05-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： LIM CHONG SOON ,  NAING SUE MON THET ,  NISHI TAKAHIRO ,  SASAI HISAO ,  SHIBAHARA YOUJI ,  SUGIO TOSHIYASU ,  TANIKAWA KYOKO ,  MATSUNOBU TORU ,  TERADA KENGO

IPC: H04N19/103 ,  H04N19/176 ,  H04N19/52 ,  H04N19/70

CPC classification number: H04N19/513 ,  H04N19/103 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

Abstract: A method of performing motion vector prediction for a current block in a picture is provided which includes: deriving a candidate for a motion vector predictor to code a current motion vector of the current block, from a first motion vector of a first block that is spatially adjacent or temporally adjacent to the current block; adding the derived candidate to a list of candidates; and deriving at least one motion vector predictor based on a selected candidate from the list of candidates, wherein the deriving of the candidate includes determining whether to derive the candidate from the first motion vector, based on a type of a current reference picture and a type of a first reference picture, the current reference picture being referred to from the current block using the current motion vector, the first reference picture being referred to from the first block using the first motion vector.

Abstract translation: 提供了一种在图像的当前块执行运动矢量预测的方法，该方法包括：获得候选为预测运动矢量来编码所述当前块的当前运动矢量，从第一块的第一运动矢量没有被空间 相邻或时间上相邻于当前块; 添加派生候选人的候选人名单; 以及基于从候选列表中，worin候选的导出包括确定性采矿无论以导出从第一运动矢量的候选的选定候选的至少一个预测运动矢量的基础上，一种类型的电流参考画面和类型的 第一参考画面的，电流基准图像被从使用当前运动矢量对当前块的简称，所述第一参考图片被从使用所述第一运动矢量的第一个块参照。

公开(公告)号：EP2782341A4

公开(公告)日：2015-04-15

申请号：EP12844046

申请日：2012-10-18

Applicant: PANASONIC IP CORP AMERICA

Inventor： WAHADANIAH VIKTOR ,  LIM CHONG SOON ,  NAING SUE MON THET ,  SUN HAI WEI ,  NISHI TAKAHIRO ,  SASAI HISAO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SUGIO TOSHIYASU ,  TERADA KENGO ,  MATSUNOBU TORU

IPC: H04N19/52 ,  H04N19/51 ,  H04N19/513 ,  H04N19/527 ,  H04N19/58

CPC classification number: H04N19/527 ,  H04N19/513 ,  H04N19/52 ,  H04N19/58

Abstract: An image coding method includes: deriving a candidate for a motion vector of a current block from a co-located motion vector (S1301); adding the candidate to a list (S1302); selecting the motion vector of the current block from the list (S1303); and coding the current block (S1304), wherein the deriving (S1301) 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：EP2763413A4

公开(公告)日：2015-03-04

申请号：EP12836512

申请日：2012-09-14

Applicant: PANASONIC IP CORP AMERICA

Inventor： TERADA KENGO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU

IPC: H04N19/70 ,  G06T9/00 ,  H04N19/122 ,  H04N19/186

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 (S501); 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 (S502).

公开(公告)号：EP2725792A4

公开(公告)日：2014-11-19

申请号：EP12802482

申请日：2012-06-22

Applicant: PANASONIC IP CORP AMERICA

Inventor： SASAI HISAO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SUGIO TOSHIYASU ,  TANIKAWA KYOKO ,  MATSUNOBU TORU

IPC: H04N19/91 ,  H04N19/119 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

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, from among a plurality of contexts (S204); and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context (S210), wherein in the determining (S204): 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 (S206); 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 (S207), and the second type is "inter_pred_flag".

公开(公告)号：EP2717576A4

公开(公告)日：2014-11-05

申请号：EP12793037

申请日：2012-05-25

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  MATSUNOBU TORU

IPC: H04N19/51 ,  H04N19/105 ,  H04N19/107 ,  H04N19/503 ,  H04N19/56

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/172 ,  H04N19/176 ,  H04N19/503 ,  H04N19/56

Abstract: A moving picture coding apparatus (100) includes: a motion vector predictor candidate calculation unit (114) which calculates one or more motion vector predictor candidates and the number of available predictor candidates; an inter prediction control unit (111) which selects an optimum motion vector predictor candidate; and a variable length coding unit (116) which sets the motion vector predictor candidate list size to the number of available predictor candidates, and variable-length codes a motion vector predictor index used for coding a motion vector, by assigning a bit string according to the motion vector predictor candidate list size to the index.

Abstract translation: 运动图像编码装置（100）包括：运动矢量预测器候选计算单元（114），其计算一个或多个运动矢量预测器候选和可用预测器候选的数量; 选择最佳运动矢量预测器候选的帧间预测控制单元（111） 以及可变长度编码单元（116），其将所述运动矢量预测器候选列表大小设置为可用预测器候选的数量，并且通过根据所述可变长度编码单元将所述运动矢量预测器候选的位串 运动矢量预测器候选列表大小为索引。

公开(公告)号：EP2661087A4

公开(公告)日：2014-10-29

申请号：EP11854143

申请日：2011-12-27

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SASAI HISAO

IPC: H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/137 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/567 ,  H04N19/577 ,  H04N19/583 ,  H04N19/61

CPC classification number: 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

公开(公告)号：EP2717577A4

公开(公告)日：2016-01-27

申请号：EP12793067

申请日：2012-05-29

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  MATSUNOBU TORU

IPC: H04N19/56 ,  H04N19/105 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/107 ,  H04N19/503 ,  H04N19/52 ,  H04N19/56

Abstract: An image coding method includes: determining a maximum number of merging candidates (S601); deriving first merging candidates based on blocks spatially or temporally neighboring a current block (S602); determining whether or not a total number of the first merging candidates is smaller than the maximum number (S604); 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 (S605); selecting a merging candidate to be used for the coding of the current block from the first merging candidates and the second merging candidate (S606); and coding, using the determined maximum number, an index for identifying the selected merging candidate, and attaching the coded index to the bitstream (S607).

Abstract translation: 图像编码方法包括：确定最大合并候选数（S601）; 基于与当前块空间或时间相邻的块来导出第一合并候选（S602）; 确定第一合并候选的总数是否小于最大数（S604）; 当确定第一合并候选的总数小于最大数目时，通过从所导出的第一合并候选中的组合导出用于双向预测的第二合并候选（S605）; 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（S606）; 以及使用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（S607）。