CODING AND DECODING METHODS AND DEVICES

Title:

CODING AND DECODING METHODS AND DEVICES

Document Type and Number:

WIPO Patent Application WO/2019/219066

Kind Code:

A1

Abstract:

The present application relates to the field of video coding, decoding and compression. Disclosed in the embodiments of the present application are coding and decoding methods and devices, for use in solving the problem in an existing division mode of being unable to satisfy relatively complex texture requirements. The decoding method specifically comprises: parsing a code stream, and determining a basic division mode of a current image block to be decoded and a target derivative mode of a sub-image block in the current image block to be decoded; dividing the current image block to be decoded into N sub-image blocks according to the target derivative mode, N being an integer greater than or equal to 2; deriving at least two adjacent sub-image blocks in the N sub-image blocks into a derivative image block according to the target derivative mode; and decoding the derivative image block.

Inventors:

YU QUANHE (CN)
AN JICHENG (CN)
ZHENG JIANHUA (CN)
LIN YONGBING (CN)
WANG LIQIANG (CN)
NIU BENBEN (CN)
WEI ZIWEI (CN)
HE YUN (CN)

Application Number:

PCT/CN2019/087316

Publication Date:

November 21, 2019

Filing Date:

May 16, 2019

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)
UNIV TSINGHUA (CN)

International Classes:

H04N19/176; H04N19/172

Domestic Patent References:

WO2018056703A1

2018-03-29

Foreign References:

CN104811736A	2015-07-29
CN102595116A	2012-07-18
CN107566848A	2018-01-09
TW201528209A	2015-07-16
CN201810470411A	2018-05-16
CN201810581662A	2018-06-07

Other References: