Title:
USAGE OF TRANSQUANT BYPASS MODE FOR MULTIPLE COLOR COMPONENTS
Document Type and Number:
WIPO Patent Application WO/2020/228716
Kind Code:
A1
Abstract:
Devices, systems and methods for lossless coding for visual media coding are described. An exemplary method for video processing includes performing a conversion between a video comprising multiple color components and a bitstream representation of the video, where the bitstream representation conforms to a rule that specifies that one or more syntax elements are included in the bitstream representation for two color components to indicate whether a transquant bypass mode is applicable for representing video blocks of the two color components in the bitstream representation, and where, when the transquant bypass mode is applicable to a video block, the video block is represented in the bitstream representation without use of a transform and quantization process or the video block is obtained from the bitstream representation without use of an inverse transform and inverse quantization process.
Inventors:
ZHANG LI (US)
ZHANG KAI (US)
DENG ZHIPIN (CN)
LIU HONGBIN (CN)
ZHANG NA (CN)
WANG YUE (CN)
ZHANG KAI (US)
DENG ZHIPIN (CN)
LIU HONGBIN (CN)
ZHANG NA (CN)
WANG YUE (CN)
Application Number:
PCT/CN2020/089934
Publication Date:
November 19, 2020
Filing Date:
May 13, 2020
Export Citation:
Assignee:
BEIJING BYTEDANCE NETWORK TECH CO LTD (CN)
BYTEDANCE INC (US)
BYTEDANCE INC (US)
International Classes:
H04N21/00
Domestic Patent References:
| WO2013166395A2 | 2013-11-07 | |||
| WO2013166395A2 | 2013-11-07 | |||
| WO2016057701A1 | 2016-04-14 | |||
| WO2016197314A1 | 2016-12-15 |
Foreign References:
| US20160100189A1 | 2016-04-07 |
Other References:
BENJAMIN，BOSS ET AL.: "High Efficiency Video Coding (HEVC) text specification draft 9", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11 11TH MEETING: SHANGHAI， CN， 10–19 OCTOBER 2012, 19 October 2012 (2012-10-19), XP002753850, DOI: 20200709080656A
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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