Title:
An image decoding method and an image decoding device
Document Type and Number:
Japanese Patent JP6210368
Kind Code:
B2
Abstract:
An image decoding method includes: obtaining setting information for setting a first quantization matrix; and inverse-quantizing coefficients of the image, using the first quantization matrix set according to the setting information. In the inverse-quantizing: when the setting information includes specifying information for specifying a second quantization matrix and the second quantization matrix specified by the specifying information is referable, the second quantization matrix is set as the first quantization matrix; and when the setting information includes the specifying information and the second quantization matrix specified by the specifying information is not referable, a third quantization matrix which is referable may be set as the first quantization matrix.
Inventors:
Yoji Shibahara
Toshiyasu Sugio
Kyoko Tanigawa
Toru Matsunobu
Toshio Sasai
Kengo Terada
Toshiyasu Sugio
Kyoko Tanigawa
Toru Matsunobu
Toshio Sasai
Kengo Terada
Application Number:
JP2013188815A
Publication Date:
October 11, 2017
Filing Date:
September 11, 2013
Export Citation:
Assignee:
Sun Patent Trust
International Classes:
H04N19/126; H04N19/157; H04N19/176; H04N19/463; H04N19/70
Domestic Patent References:
| JP2007520165A |
Foreign References:
| WO2009050897A1 | ||||
| WO2011052215A1 | ||||
| US20060177143 |
Other References:
Yoshitaka Morigami et al.,Improvement of Scaling List,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,9th Meeting: Geneva, CH,2012年 4月,JCTVC-I0059,pp.1-6
Sung-Chang Lim et al.,Simplification on default quantization matrix signaling,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,9th Meeting: Geneva, CH,2012年 4月,JCTVC-I0101_r1,pp.1-7
Benjamin Bross et al.,High efficiency video coding (HEVC) text specification draft 7,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,9th Meeting: Geneva, CH,2012年 7月,JCTVC-I1003_d9,pp.i, 30-33, 70-71
Sung-Chang Lim et al.,Simplification on default quantization matrix signaling,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,9th Meeting: Geneva, CH,2012年 4月,JCTVC-I0101_r1,pp.1-7
Benjamin Bross et al.,High efficiency video coding (HEVC) text specification draft 7,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,9th Meeting: Geneva, CH,2012年 7月,JCTVC-I1003_d9,pp.i, 30-33, 70-71
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka
Eisaku Teratani
Shinichi Michisaka