IMAGE ENCODING/DECODING METHOD AND DEVICE USING MAXIMUM TRANSFORM SIZE RESTRICTION OF CHROMA COMPONENT ENCODING BLOCK, AND METHOD FOR TRANSMITTING BITSTREAM

Title:

IMAGE ENCODING/DECODING METHOD AND DEVICE USING MAXIMUM TRANSFORM SIZE RESTRICTION OF CHROMA COMPONENT ENCODING BLOCK, AND METHOD FOR TRANSMITTING BITSTREAM

Document Type and Number:

WIPO Patent Application WO/2020/262960

Kind Code:

A1

Abstract:

Provided are an image encoding/decoding method and device. An image decoding method performed by an image decoding device, according to the present disclosure, may comprise the steps of: determining a prediction mode of a current block; when the prediction mode of the current block is an intra block copy (IBC) prediction mode, generating a prediction block for the current block on the basis of IBC prediction mode information; determining the size of a transform block of the current block on the basis of a color component of the current block; generating a residual block of the current block on the basis of the size of the transform block; and reconstructing the current block on the basis of the prediction block and the residual block of the current block.

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Inventors:

LI LING (KR)
NAM JUNG HAK (KR)

Application Number:

PCT/KR2020/008231

Publication Date:

December 30, 2020

Filing Date:

June 24, 2020

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H04N19/122; H04N19/176; H04N19/186; H04N19/44; H04N19/593

Domestic Patent References:

WO2019054736A1

2019-03-21

Foreign References:

KR20150043221A	2015-04-22
KR20160040977A	2016-04-15
US20160057430A1	2016-02-25
KR20170019365A	2017-02-21

Other References: