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）。

公开(公告)号：EP2843945A4

公开(公告)日：2016-01-06

申请号：EP13781959

申请日：2013-04-11

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/423 ,  H04N19/176 ,  H04N19/70

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

Abstract: An image encoding method of coding one or more units that are included in a picture, including: generating a first flag indicating whether or not a removal time of encoded data by a hypothetical decoder from a buffer for storing the encoded data is set per unit (S221); generating a second flag indicating whether an interval between removal times of the units is constant or arbitrary when the removal time is set per unit (S222); and generating an encoded bitstream including the encoded data, the first flag, and the second flag (S223).

Abstract translation: 一种对包括在图像中的一个或多个单元进行编码的图像编码方法，包括：生成第一标志，其指示是否由用于存储编码数据的缓冲器中的假设解码器的编码数据的去除时间设置为每单位 S221）; 产生指示当每单位设置移除时间时单元的去除时间之间的间隔是恒定还是任意的第二标志（S222）; 以及生成包括编码数据，第一标志和第二标志的编码比特流（S223）。

公开(公告)号：EP2871838A4

公开(公告)日：2015-07-29

申请号：EP13816103

申请日：2013-06-28

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N7/00 ,  H04N19/423 ,  H04N19/46 ,  H04N19/573 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N19/597 ,  H04N19/30 ,  H04N19/423 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/70

Abstract: An image encoding method for encoding a multiview video is provided. The method includes: determining a maximum number of per-picture pixels (127) and a maximum buffer size (128) which corresponds to a maximum number of candidate reference images for use in a non-multiview coding, based on a level signal (126) representing a coding level with reference to a table (T1) (S101); calculating a maximum number of candidate reference views (129) for use in inter-view predictive coding using the maximum number of per-picture pixels (127), an image size of an input image (125), and a scale factor for use in multiview video coding (S102); and calculating an MVC maximum buffer size (130) corresponding to a maximum number of candidate reference images for use in multiview video coding, using the maximum number of views (129), and the maximum buffer size (128) (S103).

公开(公告)号：EP2624564A4

公开(公告)日：2015-06-24

申请号：EP11828426

申请日：2011-09-28

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/463

CPC classification number: H04N19/14 ,  H04N19/103 ,  H04N19/176 ,  H04N19/463

Abstract: An image decoding method includes: restoring a selected prediction mode used in prediction at a time of coding; and decoding a current block included in coded image data to generate a decoded block, according to the prediction based on the selected prediction mode. The restoring includes: determining a first estimated prediction mode; determining a second estimated prediction mode different from the first estimated prediction mode; and restoring the selected prediction mode based on the mode information, the first estimated prediction mode, and the second estimated prediction mode.

公开(公告)号：EP2884747A1

公开(公告)日：2015-06-17

申请号：EP13827144

申请日：2013-08-07

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/70 ,  H04N19/13 ,  H04N19/174 ,  H04N19/436 ,  H04N19/91

CPC classification number: H04N19/91 ,  H04N19/13 ,  H04N19/136 ,  H04N19/174 ,  H04N19/436 ,  H04N19/70

Abstract: An image decoding method of decoding, on a per-block basis, a coded image included in a bitstream, includes: performing arithmetic decoding on a current block to be decoded (S101); determining whether or not the current block is at the end of a slice(S103); determining, when it is determined that the current block is not at the end of the slice, whether or not the current block is at the end of a sub-stream which is a structural unit of the image that is different from the slice (S105); and performing arithmetic decoding on a sub-last bit and performing arithmetic decoding termination, when it is determined that the current block is at the end of the sub-stream (S106).

Abstract translation: 一种图像解码方法，以块为单位对包含在比特流中的编码图像进行解码，其特征在于，包括：对解码对象块进行算术解码（S101）的步骤; 确定当前块是否在切片的结尾处（S103）; 当确定当前块不在切片的结尾时，确定当前块是否在作为与切片不同的图像的结构单元的子流的末端处（S105 ）; 并且当确定当前块在子流的末尾时，对子最后一位执行算术解码并且执行算术解码终止（S106）。