RESIDUAL CODING METHOD AND DEVICE FOR SAME

Title:

RESIDUAL CODING METHOD AND DEVICE FOR SAME

Document Type and Number:

WIPO Patent Application WO/2020/055014

Kind Code:

A1

Abstract:

A picture decoding method, which is performed by a decoding device according to the present invention, is characterized by including: a step for receiving a bitstream including residual information; a step for deriving a quantized transform coefficient for a current block on the basis of the residual information included in the bitstream; a step for deriving a transform coefficient from the quantized transform coefficient on the basis of an inverse-quantization process; a step for deriving a residual sample for the current block by applying an inverse transform to the derived transform coefficient; and a step for generating a restored picture on the basis of the residual sample for the current block.

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Inventors:

CHOI JUNGAH (KR)
YOO SUNMI (KR)
HEO JIN (KR)
KIM SEUNGHWAN (KR)
CHOI JANGWON (KR)

Application Number:

PCT/KR2019/011195

Publication Date:

March 19, 2020

Filing Date:

August 30, 2019

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H04N19/90; H04N19/132; H04N19/139; H04N19/176; H04N19/70

Foreign References:

KR20080110170A	2008-12-18
KR20160032119A	2016-03-23
KR20180048929A	2018-05-10
KR20070074487A	2007-07-12
US20130336388A1	2013-12-19

Other References: