公开(公告)号：CA3137175A1

公开(公告)日：2020-10-29

申请号：CA3137175

申请日：2020-04-24

Applicant: PANASONIC IP CORP AMERICA

Inventor： KATO YUSUKE ,  NISHI TAKAHIRO ,  TOMA TADAMASA ,  ABE KIYOFUMI

IPC: H04N19/13

Abstract: This coding device (100) comprises a circuit and a memory connected to the circuit, wherein the circuit limits the number of processes of context-adaptive coding in an operation, codes the blocks of an image, and in the coding of blocks, in the cases in which orthogonal transformation is applied to a block and in which orthogonal transformation is not applied to a block, a sub-block flag coding process which uses context-adaptive coding to code a sub-block flag indicating whether the sub-blocks contained within a block contain a non-zero coefficient is carried out without being included in the number of processes.

公开(公告)号：CA3069579C

公开(公告)日：2020-08-25

申请号：CA3069579

申请日：2018-07-11

Applicant: PANASONIC IP CORP AMERICA

Inventor： OHKAWA MASATO ,  SAITOU HIDEO ,  TOMA TADAMASA ,  NISHI TAKAHIRO ,  ABE KIYOFUMI ,  KANOH RYUICHI

IPC: H04N19/60 ,  H04N19/124 ,  H04N19/176 ,  H04N19/625

Abstract: A coding device (100) for coding a block to be coded of a picture is provided with a circuit and a memory, wherein the circuit generates a first transformation coefficient using the memory by performing a first transformation on a residual signal of the block to be coded using a first transformation base, generates a second transformation coefficient by performing a second transformation on the first transformation coefficient using a second transformation base when the first transformation base matches a predetermined transformation base, quantizes the second transformation coefficient, and quantizes the first transformation coefficient without performing the second transformation when the first transformation base differs from the predetermined transformation base.

公开(公告)号：CA3100839A1

公开(公告)日：2019-11-28

申请号：CA3100839

申请日：2019-05-09

Applicant: PANASONIC IP CORP AMERICA

Inventor： TOMA TADAMASA ,  NISHI TAKAHIRO ,  ABE KIYOFUMI ,  KANOH RYUICHI ,  LIM CHONG SOON ,  SHASHIDHAR SUGHOSH PAVAN ,  LIAO RU LING ,  SUN HAI WEI ,  TEO HAN BOON ,  LI JING YA

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/70

Abstract: A coding device (100) performs division into a plurality of blocks by using a block division mode set obtained by combining one or more block division modes which define division types. The block division mode set comprises: a first block division mode in which the number of divisions and the dividing direction for dividing a first block are defined; and a second block division mode in which the number of divisions and the dividing direction for dividing a second block, which is one of blocks acquired by dividing the first block are defined. When a division in the first block mode results in three blocks, the second block is the center block among the blocks acquired by dividing the first block, and the dividing direction of the second block division mode is the same as the dividing direction of the first block division mode, then the second block division mode includes only a block division mode in which a division results in three blocks.

公开(公告)号：CA2866121C

公开(公告)日：2018-04-24

申请号：CA2866121

申请日：2013-02-28

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/159 ,  H04N19/177 ,  H04N19/513 ,  H04N19/597

Abstract: A moving picture coding method includes: coding (S111) a first flag indicating whether or not temporal motion vector prediction is used; when the first flag indicates that the temporal motion vector prediction is used (Yes in S112): coding (S113) a first parameter for calculating the temporal predictive motion vector; wherein when the first flag indicates that the temporal motion vector prediction is not used (No in S112), the first parameter is not coded (S116).

公开(公告)号：MY161905A

公开(公告)日：2017-05-15

申请号：MYPI2013702307

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: H04N7/12

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). Figure 8.

公开(公告)号：MY158446A

公开(公告)日：2016-10-14

申请号：MYPI2012002817

申请日：2010-01-19

Applicant: PANASONIC IP CORP AMERICA

Inventor： SOON LIM CHONG ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI

IPC: H04N13/00 ,  H04N19/00 ,  H04N19/102 ,  H04N19/136 ,  H04N19/146 ,  H04N19/169 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/597 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

Abstract: A CODING METHOD INCLUDES: DEFINING AN ACCESS UNIT (S502 TO S508); AND CODING EACH OF THE PICTURES INCLUDED IN THE ACCESS UNIT, FOR EACH ACCESS UNIT (S526). THE DEFINING (S502 TO S508) INCLUDES: DETERMINING A UNIT OF CODING FOR DETERMINING WHETHER THE PICTURES INCLUDED IN THE ACCESS UNIT ARE TO BE UNIFORMLY CODED ON A PER-FIELD BASIS OR ON A PER-FRAME BASIS (S502); AND DETERMINING A FIELD TYPE FOR DETERMINING WHETHER THE PICTURES ARE TO BE UNIFORMLY CODED AS TOP FIELDS OR BOTTOM FIELDS (S504 TO S508) WHEN IT IS DETERMINED THAT THE PICTURES INCLUDED IN THE ACCESS UNIT ARE TO BE CODED ON A PER-FIELD BASIS. IN THE CODING (S526), EACH OF THE PICTURES IS CODED FOR EACH ACCESS UNIT IN A FORMAT DETERMINED IN THE DETERMINING OF A UNIT OF CODING (S526 S502) AND IN THE DETERMINING OF A FIELD TYPE (S502 S504 TO S508)

公开(公告)号：MY155999A

公开(公告)日：2015-12-31

申请号：MYPI2012002812

申请日：2010-01-19

Applicant: PANASONIC IP CORP AMERICA

Inventor： SOON LIM CHONG ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI

IPC: H04N13/00 ,  H04N19/00 ,  H04N19/102 ,  H04N19/136 ,  H04N19/146 ,  H04N19/169 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/597 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

Abstract: A CODING METHOD INCLUDES: DEFINING AN ACCESS UNIT (S502 TO S508); AND CODING EACH OF THE PICTURES INCLUDED IN THE ACCESS UNIT, FOR EACH ACCESS UNIT (S526). THE DEFINING (S502 TO S508) INCLUDES: DETERMINING A UNIT OF CODING FOR DETERMINING WHETHER THE PICTURS INCLUDED IN THE ACCESS UNIT ARE TO BE UNIFORMLY CODED ON A PER-FIELD BASIS OR ON A PER-FRAME BASIS (S502); AND DETERMINING A FIELD TYPE FOR DETERMINING WHETHER THE PICTURES ARE TO BE UNIFORMLY CODED AS TOP FIELDS OR BOTTOM FIELDS (S504 TO S508) WHEN IT IS DETERMINED THAT THE PICTURES INCLUDED IN THE ACCESS UNIT ARE TO BE CODED ON A PER-FIELD BASIS. IN THE CODING (S526), EACH OF THE PICTURES IS CODED FOR EACH ACCESS UNIT IN A FORMAT DETERMINED IN THE DETERMINING OF A UNIT OF CODING (S526 S502) AND IN THE DETERMINING OF A FIELD TYPE (S502 S504 TO S508) FIG 8.

公开(公告)号：SG10201505787RA

公开(公告)日：2015-09-29

申请号：SG10201505787R

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

Abstract: A moving picture decoding method according to the present invention includes: performing intra prediction on a target block to calculate values of predicted samples of the target block (S403); and calculating reconstructed samples of the target block by adding difference data and the values of the predicted samples of the target block (S404), wherein in the performing of intra prediction, validity of each of reference samples that are located one of immediately above and immediately to the left of the target block is determined, and when the reference samples include both a valid reference sample and an invalid reference sample, the intra prediction is performed using the valid reference sample, and an intra-predicted reference sample is determined as a valid reference sample, and an inter-predicted reference sample is determined as an invalid reference sample.

公开(公告)号：ZA201309740B

公开(公告)日：2015-05-27

申请号：ZA201309740

申请日：2013-12-23

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N20060101

Abstract: An image coding method includes: performing context arithmetic coding (S511) to consecutively code (i) first information indicating whether or not to perform sample adaptive offset (SAO) processing for a first region of an image and (ii) second information indicating whether or not to use, in the SAO processing for the first region, information on SAO processing for a region other than the first region, the context arithmetic coding being arithmetic coding using a variable probability, the SAO processing being offset processing on a pixel value; and performing bypass arithmetic coding (S512) to code other information which is information on the SAO processing for the first region and different from the first information or the second information, after the first information and the second information are coded, the bypass arithmetic coding being arithmetic coding using a fixed probability.

公开(公告)号：ZA201206591B

公开(公告)日：2014-05-28

申请号：ZA201206591

申请日：2012-09-03

Applicant: PANASONIC IP CORP AMERICA

Inventor： DRUGEON VIRGINIE ,  NISHI TAKAHIRO ,  TANIKAWA KYOKO ,  SHIBAHARA YOUJI ,  SASAI HISAO

IPC: H04N19/593