公开(公告)号：EP2750389A4

公开(公告)日：2014-09-24

申请号：EP12825215

申请日：2012-08-23

申请人： PANASONIC CORP

发明人： OGAWA TOMOKI ,  MATSUMOTO TOMOHIRO ,  SASAKI TAIJI ,  YAHATA HIROSHI ,  KASHIWAGI YOSHIICHIRO

IPC分类号： H04N13/00 ,  H04N5/92

CPC分类号： H04N13/0055 ,  G11B27/105 ,  G11B2220/2541 ,  H04N5/85 ,  H04N13/0003 ,  H04N19/30 ,  H04N19/597

摘要： On a recording medium, a monoscopic video specific section and a stereoscopic video specific section are continuous immediately after an extended data specific section. A shared section includes a continuous, interleaved arrangement having one each of main-view extents, sub-view extents, and extended extents. The stereoscopic video specific section includes a continuous, interleaved arrangement of extents having one each of the main-view extents and the sub-view extents. The monoscopic video specific section includes a continuous arrangement of a copy of the main-view extent arranged in the stereoscopic video specific section. The extended data specific section includes one of the extended extents that is to be used in combination with the copy of the main-view extent arranged in the monoscopic video specific section. The shared section is accessed when stereoscopic video images are played back, when monoscopic video images are played back, and when an extended stream is used. The stereoscopic video specific section is accessed during playback of the stereoscopic video images. The monoscopic video specific section is accessed during playback of the monoscopic video images. The extended data specific section and the monoscopic video specific section are accessed when the extended stream is read, immediately before or after a long jump.

公开(公告)号：EP1665133A4

公开(公告)日：2009-05-13

申请号：EP05711937

申请日：2005-01-19

申请人： PANASONIC CORP

发明人： KADONO SHINYA ,  KASHIWAGI YOSHIICHIRO ,  LU JIUHUAI ,  LIM CHONG SOON ,  TAO CHEN

IPC分类号： G06K9/36 ,  G06K9/46 ,  H04N7/12 ,  H04N7/26 ,  H04N7/50 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/136 ,  H04N19/126 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/61 ,  H04N19/91

摘要： The picture coding method according to the present invention is a picture coding method for coding a picture on a block-by-block basis through orthogonal transformation (Fig. 3, T) and quantization (Fig. 3, Q), and coding a quantization matrix (Fig. 2) that is used to derive quantization steps for frequencies of orthogonal transformation coefficients, the method comprising: calculating a difference value between each of frequency components included in the quantization matrix (Fig. 2) and a predetermined value corresponding to said each of the frequency components; and coding the difference value into a variable length code (Fig. 3, VLC), wherein a code length of the variable length code is shorter as the difference value is smaller, or equal to a code length of a neighboring difference value of said difference value (Fig. 4).

公开(公告)号：EP2481214A4

公开(公告)日：2014-08-27

申请号：EP10819344

申请日：2010-09-21

申请人： PANASONIC CORP

发明人： KASHIWAGI YOSHIICHIRO ,  CHEN TAO ,  NISHI TAKAHIRO

IPC分类号： H04N7/12 ,  H04N19/136 ,  H04N19/184 ,  H04N19/187 ,  H04N19/34 ,  H04N19/36 ,  H04N19/56 ,  H04N19/597

CPC分类号： H04N19/36 ,  H04N19/136 ,  H04N19/184 ,  H04N19/187 ,  H04N19/34 ,  H04N19/56 ,  H04N19/597

公开(公告)号：EP1709801A4

公开(公告)日：2010-11-24

申请号：EP05712072

申请日：2005-01-26

申请人： PANASONIC CORP

发明人： LU JIUHUAI ,  CHEN TAO ,  KASHIWAGI YOSHIICHIRO ,  KADONO SHINYA ,  LIM CHONG SOON

IPC分类号： H04N7/26 ,  H04N7/12 ,  H04N7/50

CPC分类号： H04N19/188 ,  H04N19/126 ,  H04N19/159 ,  H04N19/169 ,  H04N19/186 ,  H04N19/61 ,  H04N19/70

公开(公告)号：EP2658260A4

公开(公告)日：2015-07-01

申请号：EP11850478

申请日：2011-12-21

申请人： PANASONIC CORP

发明人： KASHIWAGI YOSHIICHIRO ,  CHEN TAO

IPC分类号： H04N19/30 ,  H04N19/597 ,  H04N19/98

CPC分类号： H04N19/30 ,  H04N19/597 ,  H04N19/98

摘要： To reduce the amount of data involved in coding a picture having a bit-depth higher than a bit-depth supported by an encoder, an image coding apparatus (100A) according to an aspect of the present invention includes: a down-converter (102A) which generates a base layer picture by down-converting a target picture to reduce the bit-depth of the target picture by a first value; a first encoder (111A) which codes the base layer picture, and generates a reconstructed picture by decoding the coded base layer picture; a subtractor (103A) which performs shift amount adjustment on the reconstructed picture to increase the bit-depth of the reconstructed picture by a second value, and generates, based on the reconstructed picture on which the adjustment has been performed and the target picture, an enhancement layer picture for enhancing the quality of the base layer picture; a second encoder (112A) which codes the enhancement layer picture; and an output unit (115) which outputs the coded base layer picture and the coded enhancement layer picture.

公开(公告)号：EP1714484A4

公开(公告)日：2009-03-18

申请号：EP05712071

申请日：2005-01-26

申请人： PANASONIC CORP

发明人： CHEN TAO ,  LU JIUHUAI ,  KASHIWAGI YOSHIICHIRO ,  KADONO SHINYA ,  LIM CHONG SOON

IPC分类号： H04N7/30 ,  H04N7/12

CPC分类号： H04N19/42 ,  H04N19/126 ,  H04N19/46 ,  H04N19/61

摘要： The picture decoding method according to the present invention is a decoding method for decoding coded pictures by inverse quantization (IQ1) and inverse orthogonal transformation, in which a quantization matrix which defines a scaling ratio of a quantization step for each component is multiplied by a multiplier (IQ11), which is a coefficient for frequency transformation or a quantization step, and also, a result of the multiplication is multiplied by a quantized value, as a process of inverse quantization.