MOTION VECTOR PREDICTION METHOD AND DEVICE, AND CODEC

Title:

MOTION VECTOR PREDICTION METHOD AND DEVICE, AND CODEC

Document Type and Number:

WIPO Patent Application WO/2020/007304

Kind Code:

A1

Abstract:

A decoding method, comprising parsing a code stream so as to obtain a syntax element, wherein the syntax element includes at least an index of optimal candidate motion information of a current block (s151); determining the construction of a first list or a second list for a current image block according to the syntax element (s152), wherein the first list is a block-based candidate motion information list, and the second list is a sub-block-based candidate motion information list; determining optimal motion information in the first list or the second list according to the index (s153); and predicting the current block according to the optimal motion information (s154). The method distinguishes between candidate motion vector lists of a block and a sub-block, and effectively reduces the transmission cost of the optimal candidate motion vector.

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Inventors:

CHEN HUANBANG (CN)
YANG HAITAO (CN)
CHEN JIANLE (US)
XU WEIWEI (CN)
FU TING (CN)
FU JIALI (CN)

Application Number:

PCT/CN2019/094429

Publication Date:

January 09, 2020

Filing Date:

July 02, 2019

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04N19/593; H04N19/33

Foreign References:

CN103716631A	2014-04-09
CN106789217A	2017-05-31
CN102595116A	2012-07-18
CN104601988A	2015-05-06

Other References: