公开(公告)号：EP2744202A4

公开(公告)日：2015-03-04

申请号：EP12821785

申请日：2012-08-07

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/174 ,  G06T9/00 ,  H04N19/13 ,  H04N19/134 ,  H04N19/17 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70

CPC classification number: H04N19/124 ,  G06T9/00 ,  G06T9/005 ,  G06T9/007 ,  G06T9/008 ,  H04N19/13 ,  H04N19/134 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/60 ,  H04N19/70

Abstract: An image coding method according to an aspect of the present invention includes: dividing a picture into tiles (S201); coding the tiles to generate pieces of coded data each of which corresponds to a different one of the tiles (S202); and generating a bitstream including the pieces of coded data (S203). The coding of the tiles (S202) includes: generating a first code string by coding a first tile which is one of the tiles, without referring to coding information used in coding another one of the tiles (S211); and adding a bit string after the first code string to make a bit length of first coded data which is one of the pieces of coded data, a multiple of a predetermined N bits, N being an integer greater than or equal to 2 (S213).

公开(公告)号：EP2661086A4

公开(公告)日：2015-02-11

申请号：EP11853084

申请日：2011-12-28

Applicant: PANASONIC IP CORP AMERICA

Inventor： WAHADANIAH VIKTOR ,  LIM CHONG SOON ,  NAING SUE MON THET ,  JING XUAN ,  SASAI HISAO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SUGIO TOSHIYASU

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/593

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/46 ,  H04N19/521 ,  H04N19/593

公开(公告)号：EP2749029A4

公开(公告)日：2015-01-21

申请号：EP12826169

申请日：2012-08-23

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/176 ,  H04N19/119 ,  H04N19/436 ,  H04N19/51 ,  H04N19/55 ,  H04N19/70

CPC classification number: H04N19/55 ,  H04N19/105 ,  H04N19/119 ,  H04N19/157 ,  H04N19/176 ,  H04N19/436 ,  H04N19/51 ,  H04N19/70

Abstract: State-of-the-art video coding schemes supports splitting a picture into smaller rectangular units called tiles units. Each tile units can be independently encoded and decoded by separate encoders and decoders, respectively. The primary purpose of tiles units is to allow parallel processing of the picture to reduce implementation cost and complexity. The present disclosure provides additional functionality to define flexible partitioned tile regions and to allow partial decoding and reconstruction of tile regions.

公开(公告)号：EP2733941A4

公开(公告)日：2014-12-03

申请号：EP12811252

申请日：2012-07-06

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/91

CPC classification number: H04N19/21 ,  H04N19/105 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/197 ,  H04N19/91

Abstract: The image decoding method includes determining a context for use in a current block, from among a plurality of contexts (S204), wherein in the determining (S204), the context is determined under a third condition that control parameter of an upper block is not used and a hierarchical depth of a data unit to which the control parameter of the current block belongs is used, when the signal type is a third type (S213), and the third type is one or more of (i) "merge_flag", (ii) "ref_idx_l0" or "ref_idx_l1", (iii) "inter_pred_flag", (iv) "mvd_l0" or "mvd_l1", (v) "intra_chroma_pred_mode", (vi) "cbf_luma", and (vii) "cbf_cb" or "cbf_cr".

公开(公告)号：EP2725799A4

公开(公告)日：2014-11-26

申请号：EP12803742

申请日：2012-06-26

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/61 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/154 ,  H04N19/17 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/90

CPC classification number: H04N19/176 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/46 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61 ,  H04N19/90 ,  H04N19/93

Abstract: An image coding method includes: generating a predicted block (S6001); calculating a residual block (S6002); calculating quantized coefficients by performing transform and quantization on the residual block (S6003); calculating a coded residual block by performing inverse quantization and inverse transform on the quantized coefficients (S6004); generating a temporary coded block (S6005); determining whether or not an offset process is required, to generate first flag information indicating a result of the determination (S6006); executing the offset process on the temporary coded block when it is determined that the offset process is required (S6012); and performing variable-length coding on the quantized coefficients and the first flag information (S6011).

公开(公告)号：EP2717579A4

公开(公告)日：2014-11-05

申请号：EP12793588

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

CPC classification number: H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/503 ,  H04N19/52 ,  H04N19/521

Abstract: A moving picture coding apparatus (100) includes: a motion vector predictor candidate calculation unit (114) which calculates motion vector predictor candidates and the number of motion vector 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 motion vector predictor candidates, and assigns a bit string according to the motion vector predictor candidate list size to a motion vector predictor index used for coding a motion vector, thereby performing variable length coding.

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。