公开(公告)号：EP2645716A4

公开(公告)日：2016-04-13

申请号：EP11843582

申请日：2011-11-22

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52

Abstract: A motion vector calculation method which attains a higher compression rate, includes: a selection step of selecting one of at least one reference motion vector of a reference block; and a calculation step of calculating a motion vector of a current block to be processed, using the one reference motion vector selected in the selection step, and in the selection step, when the reference block has two reference motion vectors (S121), one of the two reference motion vectors is selected (S123, S124) based on whether the reference block is located before or after the current block in display time order, and when the reference block has only one reference motion vector (S125, S127), the one reference motion vector is selected (S126, S128).

公开(公告)号：EP2665265A4

公开(公告)日：2016-03-30

申请号：EP12734120

申请日：2012-01-12

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/31 ,  H04N19/423

CPC classification number: H04N19/50 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/31 ,  H04N19/423 ,  H04N19/44

Abstract: With an image coding method which allows reduction of processing loads, when pictures included in a video signal are classified into layers so as to belong to their respective layers, a picture that belongs, to the second layer that is located in a range restricted according to the first layer to which a current picture to be coded that is one of the pictures belongs, is referred to as a reference picture for the current picture (S10), and the current picture is coded based on the reference picture (S11).

Abstract translation: 与图像编码方法，其允许降低处理负荷，当包括在一个视频信号图像被分类成层以属于他们respectivement层，图片做所属的第二层并位于受限制的雅丁到的范围内 第一层至哪一个当前图片进行编码所做的是一个图片所属中，通过被称为当前图像（S10）参考图片，和当前图片是基于所述参考画面（S11）编码。

公开(公告)号：EP2728878A4

公开(公告)日：2016-03-23

申请号：EP12804429

申请日：2012-06-28

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N7/32

CPC classification number: H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/52 ,  H04N19/573 ,  H04N19/70 ,  H04N19/96

Abstract: An image decoding method for decoding, on a block-by-block basis, image data included in a coded bitstream includes: obtaining a fixed number of merging candidates each of which is a candidate set of a prediction direction, a motion vector, and a reference picture index which are to be referenced in decoding of a current block; and obtaining, from the coded bitstream, an index for identifying a merging candidate for the current block, wherein the fixed number of merging candidates include: one or more first candidates each derived based on a prediction direction, a motion vector, and a reference picture index which have been used for decoding a neighboring block spatially or temporally neighboring the current block; and one or more second candidates having a predetermined fixed. The fixed number is greater than or equal to two.

公开(公告)号：EP2805511A4

公开(公告)日：2015-06-03

申请号：EP13738409

申请日：2013-01-16

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/52 ,  H04N19/159 ,  H04N19/31 ,  H04N19/51 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/159 ,  H04N19/184 ,  H04N19/31 ,  H04N19/46 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70

Abstract: A method of encoding a video into a coded video bitstream with temporal motion vector prediction comprises: determining a value of a flag for indicating whether temporal motion vector prediction is used or not used for the inter-picture prediction of a sub-picture unit of a picture; and writing the flag having the value into a header of the sub-picture unit or a header of the picture; wherein if the flag indicates that temporal motion vector prediction is used, the method further comprises: creating a first list of motion vector predictors comprising a plurality of motion vector predictors including at least one temporal motion vector predictor derived from at least one motion vector from a collocated reference picture; selecting a motion vector predictor out of the first list; and writing a first parameter into the coded video bitstream for indicating the selected motion vector predictor out of the first list.

Abstract translation: 编码视频与时间运动矢量预测编码的视频比特流的方法包括：确定开采的标记的值用于表示是否时间运动矢量预测被用于或不被用于的一个副图像单元的画面间预测 图片; 和写入具有值到副图像单元或图片的报头的报头中的标记; worin如果该标志指示没有时间运动矢量预测中使用的，方法还包括：在创建运动矢量预测值的，其包括运动矢量预测，包括来自至少一个运动矢量从一个导出的至少一个时间预测运动向量的多个第一列表 位置的参考图片; 选择运动矢量预测出来的第一列表的; 和写入的第一参数成编码视频比特流，用于指示所选择的运动矢量预测出来的第一列表的。

公开(公告)号：EP2755387A4

公开(公告)日：2015-03-04

申请号：EP12829722

申请日：2012-09-05

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/174 ,  H04N19/58 ,  H04N19/70

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/15 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/30 ,  H04N19/58 ,  H04N19/70

公开(公告)号：EP2624560A4

公开(公告)日：2015-01-14

申请号：EP11828456

申请日：2011-09-29

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/70 ,  H04N19/119 ,  H04N19/12 ,  H04N19/124 ,  H04N19/42 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61

CPC classification number: H04N19/124 ,  H04N19/119 ,  H04N19/12 ,  H04N19/147 ,  H04N19/176 ,  H04N19/42 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

公开(公告)号：EP2720461A4

公开(公告)日：2014-09-03

申请号：EP12799908

申请日：2012-06-13

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/16 ,  H04N19/11 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/593

CPC classification number: H04N19/16 ,  H04N19/11 ,  H04N19/176 ,  H04N19/197 ,  H04N19/463 ,  H04N19/593

Abstract: An image decoding method of decoding, on a block-by-block basis, image data included in a coded stream includes: deriving candidates for an intra prediction mode to be used for intra prediction for a decoding target block, the number of the candidates constantly being a plural number; obtaining, from the coded stream, an index for identifying one of the derived candidates for the intra prediction mode; and determining, based on the obtained index, one of the derived candidates for the intra prediction mode as the intra prediction mode to be used for intra prediction for the decoding target block.

公开(公告)号：EP2811743A4

公开(公告)日：2016-06-01

申请号：EP13743026

申请日：2013-01-29

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/52 ,  H04N19/107 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/51 ,  H04N19/00587 ,  H04N19/105 ,  H04N19/107 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/46 ,  H04N19/52 ,  H04N19/70

Abstract: An image coding method includes: selecting a first picture from plural pictures (S141); setting a first temporal motion vector prediction flag which is associated with the first picture and is a temporal motion vector prediction flag indicating whether or not temporal motion vector prediction is to be used, to indicate that the temporal motion vector prediction is not to be used, and coding the first temporal motion vector prediction flag (S142); coding the first picture without using the temporal motion vector prediction (S143); and coding a second picture which follows the first picture in coding order, with referring to a motion vector of a picture preceding the first picture in coding order being prohibited (S144).

公开(公告)号：EP2680582A4

公开(公告)日：2015-12-30

申请号：EP12749118

申请日：2012-02-21

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/46 ,  H04N19/40 ,  H04N19/70 ,  H04N19/85

CPC classification number: H04N19/184 ,  G06T9/00 ,  G06T9/004 ,  G11B20/10 ,  G11B20/10527 ,  H04N19/103 ,  H04N19/152 ,  H04N19/159 ,  H04N19/176 ,  H04N19/40 ,  H04N19/426 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70 ,  H04N19/85

Abstract: The image coding method can improve coding efficiency by using an adaptive bit-depth. The image coding method is used to code images to generate a coded stream. The image coding method includes: writing (S1001), into a sequence parameter set in the coded stream to be generated, a first parameter representing a first bit-depth that is a bit-depth of a reconstructed sample in the images; and writing (S1002), into the sequence parameter set, a second parameter which is different from the first parameter and represents a second bit-depth that is a bit-depth of an Intra Pulse Code Modulation (IPCM) sample in the images.

公开(公告)号：EP2858356A4

公开(公告)日：2015-08-26

申请号：EP13794340

申请日：2013-04-08

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/91 ,  H04N19/13

CPC classification number: H04N19/00884 ,  H04N19/117 ,  H04N19/13 ,  H04N19/20 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

Abstract: The image coding method for coding an input image includes: converting, into a bin string, an offset value used in an offset process to be applied to a pixel value of a reconstructed image corresponding to the input image (S121); and performing bypass arithmetic coding on the bin string using a fixed probability (S126).