Video coding method and device and video decoding method and device

A video and encoded technology, applied in the field of video encoding and decoding methods and equipment, can solve the problems of high buffer size, signaling redundancy, overlapping, etc., reduce requirements, improve video encoding and decoding efficiency, and reduce signaling redundancy Effect

Pending Publication Date: 2021-07-13
TENCENT AMERICA LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some cases, current color transformation schemes can cause signaling redundancy, overlapping encoding tools, and require high buffer sizes

Method used

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  • Video coding method and device and video decoding method and device
  • Video coding method and device and video decoding method and device
  • Video coding method and device and video decoding method and device

Examples

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Embodiment Construction

[0022] The technical solutions of the embodiments of the present application are described below in conjunction with the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Apparently, the described embodiments are only some, not all, embodiments of the present application. Based on the embodiments of the present application, other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present application. Certain terms used in this application are first explained below.

[0023] Some acronyms and terms used in the examples of this application are listed below, and other unlisted acronyms and / or terms can be found from VVC standards or other relevant documents

[0024] HEVC: High Efficiency Video Coding.

[0025] VVC: Versatile Video Coding

[0026] JVET: Joint Video Exploration Team

[0027] HDR: high dy...

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Abstract

A method for color component processing includes: obtaining a coded video bitstream, the video bitstream being coded from a source having a RGB color format; decoding, signaling information of a current coding unit (CU) in a segment of a current picture from the coded video bitstream, the signaling information includes prediction information of the current CU and a control signal for processing chroma components of the current CU in a prediction residual domain; determining, according to the control signal, residual information of the current CU, comprising: determining, according to the control signal, adaptive color transform (ACT) enablement information; and when the ACT enablement information indicates that ACT is used for the current CU, obtaining the residual information by converting residuals at YCgCo domain obtained from inverse transform to residuals at RGB domain; and reconstructing the current CU based on the residual information and the prediction information.

Description

[0001] Incorporate by reference [0002] This application claims priority to U.S. Provisional Application No. 62 / 953,459, filed December 24, 2019, to U.S. Provisional Application No. 62 / 953,455, filed December 24, 2019, January 12, 2020 Priority to U.S. Provisional Application No. 62 / 960,043, filed, and U.S. Provisional Application No. 17 / 096,937, filed November 12, 2020, the entire contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present application relates to the field of video technology, and in particular, to a video encoding and decoding method and device. Background technique [0004] ITU-T VCEG (Q6 / 16) and ISO / IEC MPEG (JTC 1 / SC 29 / WG 11) in 2013 (version 1), 2014 (version 2), 2015 (version 3) and 2016 (version 4) released the H.265 / High Efficiency Video Coding (High Efficiency Video Coding, HEVC) standard. In 2015, the two standards organizations jointly established the Joint Video Exploration Team (JVET) to dev...

Claims

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Application Information

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IPC IPC(8): H04N19/186H04N19/103H04N19/159H04N19/172H04N19/174H04N19/44H04N19/61H04N19/182
CPCH04N19/186H04N19/172H04N19/159H04N19/174H04N19/103H04N19/61H04N19/44H04N19/182H04N19/70H04N19/132H04N19/46H04N19/176H04N19/60
Inventor 李翔李翎李贵春刘杉陈联霏
Owner TENCENT AMERICA LLC
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