Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
IMAGE DECODING METHOD USING CHROMA QUANTIZATION PARAMETER TABLE, AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/262909
Kind Code:
A1
Abstract:
An image decoding method performed by a decoding device, according to the present document, comprises the steps of: obtaining a flag indicating whether one chroma quantization parameter table is applied to chroma components; obtaining chroma quantization parameter data on the basis of the flag; deriving the chroma quantization parameter table on the basis of the chroma quantization parameter data; deriving a chroma quantization parameter for the chroma components on the basis of the chroma quantization parameter table; deriving residual samples for the chroma components on the basis of the chroma quantization parameter; and generating a reconstructed picture on the basis of the residual samples.

Inventors:
PALURI SEETHAL (KR)
KIM SEUNGHWAN (KR)
ZHAO JIE (KR)
Application Number:
KR2020/008126
Publication Date:
December 30, 2020
Filing Date:
June 24, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/124; H04N19/137; H04N19/18; H04N19/186; H04N19/70
Foreign References:
KR20140088098A2014-07-09
KR20140090156A2014-07-16
US20180048901A12018-02-15
KR20170136127A2017-12-11
Other References:
RAMASUBRAMONIAN, Adarsh K. et al. AHG15: On signalling of chroma QP tables. JVET-O0650-v1. Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/I EC JTC 1/SC 29/WG 11 15th Meeting: Gothenburg, SE. 26 June 2019, pp. 1-4. See pages 2-3.
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
Download PDF: