Title:
変換カーネルセットに関する情報に対するコーディング
Document Type and Number:
Japanese Patent JP7488399
Kind Code:
B2
Abstract:
An image decoding method according to the present document is characterized by including: a step for acquiring a multiple transform selection (MTS) index and residual information from a bitstream; a step for deriving transform coefficients for the current block on the basis of the residual information; and a step for generating residual samples of the current block on the basis of the MTS index and the transform coefficients, wherein the MTS index indicates a transform kernel set to be applied to the current block among transform kernel set candidates, at least one bin among bins of a bin string of the MTS index is derived on the basis of context coding, the context coding is performed on the basis of values of increase and decrease in a context index pertaining to the MTS index, and a single value of increase and decrease in the context index can be used for the context coding of the first bin among the bins of the bin string.
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Inventors:
Nam Jeonghak
Kumunmo
Lim Chaehyun
Japan Technical Co., Ltd.
Kumunmo
Lim Chaehyun
Japan Technical Co., Ltd.
Application Number:
JP2023101783A
Publication Date:
May 21, 2024
Filing Date:
June 21, 2023
Export Citation:
Assignee:
LG ELECTRONICS INC.
International Classes:
H04N19/13; H04N19/12; H04N19/184; H04N19/70
Domestic Patent References:
| JP2020053924A |
Foreign References:
| WO2017192705A1 |
Other References:
Benjamin Bross, Jianle Chen, and Shan Liu,Versatile Video Coding (Draft 3),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-L1001 (version 9),12th Meeting: Macao, CN,2018年12月10日,pp.42-45,74-76,176,218-221
Benjamin Bross, Jianle Chen, and Shan Liu,Versatile Video Coding (Draft 4),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M1001 (version 7),13th Meeting: Marrakech, MA,2019年03月17日,pp.49-50,95-96,224-226,277-281
Takeshi Tsukuba, Masaru Ikeda, Yoichi Yagasaki, and Teruhiko Suzuki,Non-CE6: Context modeling for MTS index coding,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0354-v2,15th Meeting: Gothenburg, SE,2019年07月,pp.1-4
Junghak Nam, Moonmo Koo, Jaehyun Lim, and Seung Hwan Kim,Non-CE6: Simplification of context modeling on MTS index,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0402-v4,15th Meeting: Gothenburg, SE,2019年07月,pp.1-3
Zhipin Deng, Li Zhang, Hongbin Liu, Kai Zhang, and Yue Wang,Non-CE6: Reduced contexts and context coded bins for MTS index coding,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0576,15th Meeting: Gothenburg, SE,2019年06月,pp.1-3
Benjamin Bross, Jianle Chen, and Shan Liu,Versatile Video Coding (Draft 4),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M1001 (version 7),13th Meeting: Marrakech, MA,2019年03月17日,pp.49-50,95-96,224-226,277-281
Takeshi Tsukuba, Masaru Ikeda, Yoichi Yagasaki, and Teruhiko Suzuki,Non-CE6: Context modeling for MTS index coding,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0354-v2,15th Meeting: Gothenburg, SE,2019年07月,pp.1-4
Junghak Nam, Moonmo Koo, Jaehyun Lim, and Seung Hwan Kim,Non-CE6: Simplification of context modeling on MTS index,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0402-v4,15th Meeting: Gothenburg, SE,2019年07月,pp.1-3
Zhipin Deng, Li Zhang, Hongbin Liu, Kai Zhang, and Yue Wang,Non-CE6: Reduced contexts and context coded bins for MTS index coding,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-O0576,15th Meeting: Gothenburg, SE,2019年06月,pp.1-3
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Akira Kawai
Tomohiro Minamiyama
Minoru Takemoto
Shinji Mihashi
Akira Kawai
Tomohiro Minamiyama
Minoru Takemoto