Title:
選択的変換に基づいた映像コーディング方法およびその装置
Document Type and Number:
Japanese Patent JP7420982
Kind Code:
B2
Abstract:
A method for decoding an image by a decoding device according to the present invention comprises the steps of: deriving, from a bit stream, transform coefficients of a block to be decoded; deriving residual samples of the block to be decoded, on the basis of a selective transform of the transform coefficients; and generating a reconstructed picture on the basis of the residual samples of the block to be decoded and prediction samples of the block to be decoded, wherein the selective transform is performed on the basis of a modified transform matrix, the modified transform matrix comprises a matrix including a modified basis vector, and the modified basis vector contains a certain number of elements selected from N elements.
Inventors:
Meudi Salechfer
Japan Technical Co., Ltd.
Kumunmo
Lim Jaehyun
Thetal Parli
Japan Technical Co., Ltd.
Kumunmo
Lim Jaehyun
Thetal Parli
Application Number:
JP2023005817A
Publication Date:
January 23, 2024
Filing Date:
January 18, 2023
Export Citation:
Assignee:
LG ELECTRONICS INC.
International Classes:
H04N19/12; H04N19/159; H04N19/176; H04N19/61
Domestic Patent References:
| JP2013542664A |
Foreign References:
| US20170034530 | ||||
| WO2017058614A1 |
Other References:
Jianle Chen, et al.,Algorithm Description of Joint Exploration Test Model 7 (JEM 7),Joint Video Exploration Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-G1001-v1,7th Meeting: Torino, IT,2017年08月,pp.28-32
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Akira Kawai
Tomohiro Minamiyama
Minoru Takemoto
Shinji Mihashi
Akira Kawai
Tomohiro Minamiyama
Minoru Takemoto
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