Title:
ビデオ・データ処理方法、装置、記憶媒体及び記憶方法
Document Type and Number:
Japanese Patent JP7267461
Kind Code:
B2
Abstract:
A video processing method is provided to include performing a conversion between a current video block of a video and a coded representation of the video. The conversion comprises selecting, for the current video block of a video, a transform set or a transform matrix to be used in an application of a secondary transform tool to the current video block based on a characteristic of the current video block and applying the selected transform set or transform matrix to the current video block. Using the secondary transform tool, during encoding, a forward secondary transform is applied to an output of a forward primary transform applied to a residual of the current video block prior to quantization, or during decoding, an inverse secondary transform is applied to an output of dequantization of the current video block before applying an inverse primary transform.
Inventors:
Zhang Lie
Zan, Kai
Ryu, Hongbin
One, Yue
Zan, Kai
Ryu, Hongbin
One, Yue
Application Number:
JP2021564972A
Publication Date:
May 01, 2023
Filing Date:
May 11, 2020
Export Citation:
Assignee:
Beijing Bytedance Network Technology Co., Ltd.
BYTEDANCE INC.
BYTEDANCE INC.
International Classes:
H04N19/13; H04N19/176; H04N19/593; H04N19/70
Other References:
Moonmo Koo, et al.,CE6: Reduced Secondary Transform (RST) (CE6-3.1),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-N0193,14th Meeting: Geneva, CH,2019年03月,pp.1-19
Jonathan Pfaff, et al.,CE3: Affine linear weighted intra prediction (CE3-4.1, CE3-4.2),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-N0217,14th Meeting: Geneva, CH,2019年03月,pp.1-17
Xin Zhao, Xiang Li, and Shan Liu,CE6: Coupled primary and secondary transform (Test 6.3.2),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-L0288-r1,12th Meeting: Macao, CN,2018年10月,pp.1-4
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
Jonathan Pfaff, et al.,CE3: Affine linear weighted intra prediction (CE3-4.1, CE3-4.2),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-N0217,14th Meeting: Geneva, CH,2019年03月,pp.1-17
Xin Zhao, Xiang Li, and Shan Liu,CE6: Coupled primary and secondary transform (Test 6.3.2),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-L0288-r1,12th Meeting: Macao, CN,2018年10月,pp.1-4
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:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki
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