EARLY TERMINATION FOR OPTICAL FLOW REFINEMENT

Title:

EARLY TERMINATION FOR OPTICAL FLOW REFINEMENT

Document Type and Number:

WIPO Patent Application WO/2020/169083

Kind Code:

A1

Abstract:

It is provided a method of video coding implemented in a decoding device or an encoding device, the method comprising: obtaining initial motion vectors for a current block; obtaining first predictions for a sample value in the current block based on the initial motion vectors; calculating a first matching cost according to the first predictions; determining whether an optical flow refinement process should be performed or not, according to at least one preset condition, the at least one preset condition comprising a condition of whether the calculated first matching cost is equal to or larger than a threshold; and performing an optical flow refinement process for obtaining a final inter prediction for the sample value in the current block, when it is determined that the optical flow refinement process should be performed.

Inventors:

ESENLIK SEMIH (DE)
SETHURAMAN SRIRAM (IN)
A JEEVA RAJ (IN)
KOTECHA SAGAR (IN)

Application Number:

PCT/CN2020/076178

Publication Date:

August 27, 2020

Filing Date:

February 21, 2020

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04N19/51; H04N19/52

Domestic Patent References:

WO2019010156A1	2019-01-10
WO2019010156A1	2019-01-10
WO2017036414A1	2017-03-09
WO2017133661A1	2017-08-10
WO2019001741A1	2019-01-03
WO2019010156A1	2019-01-10

Foreign References:

US20160301848A1	2016-10-13
US20040076333A1	2004-04-22

Other References: