INTER PREDICTION WITH REFINEMENT IN VIDEO PROCESSING - BEIJING BYTEDANCE NETWORK TECH CO LTD

Title:

INTER PREDICTION WITH REFINEMENT IN VIDEO PROCESSING

Document Type and Number:

WIPO Patent Application WO/2020/103870

Kind Code:

A1

Abstract:

A method for processing a video includes performing a conversion between a current block of visual media data and a corresponding coded representation of the visual media data, wherein the conversion of the current block includes determining whether a use of one or both of a bi-directional optical flow (BIO) technique or a decoder-side motion vector refinement (DMVR) technique to the current block is enabled or disabled, and wherein the determining the use of the BIO technique or the DMVR technique is based on a cost criterion associated with the current block.

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Inventors:

LIU HONGBIN (CN)
ZHANG LI (US)
ZHANG KAI (US)
XU JIZHENG (US)
WANG YUE (CN)

Application Number:

PCT/CN2019/119742

Publication Date:

May 28, 2020

Filing Date:

November 20, 2019

Export Citation:

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Assignee:

BEIJING BYTEDANCE NETWORK TECH CO LTD (CN)
BYTEDANCE INC (US)

International Classes:

H04N19/00

Domestic Patent References:

WO2018113658A1	2018-06-28
WO2018171796A1	2018-09-27
WO2018129172A1	2018-07-12

Foreign References:

US20180262773A1

2018-09-13

Other References:

XIU， XIAOYU ET AL.: "CE9.5.3: Bi-directional optical flow (BIO) simplification", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 11TH MEETING: LJUBLJANA， SI, no. m43281, 3 July 2018 (2018-07-03), XP030195905
LAI, CHEN-YEN ET AL.: "CE9-related: BIO simplification", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 12TH MEETING: MACAO， CN, no. m44923, 12 October 2018 (2018-10-12), XP030192169
LUO，JIANCONG ET AL.: "CE9.2.7: Complexity reduction on decoder-side motion vector refinement (DMVR)", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 12TH MEETING: MACAO， CN, no. m44216, 25 September 2018 (2018-09-25), XP030190951
LIU，HONGBIN ET AL.: "CE9-related: Simplification of Decoder Side Motion Vector Derivation", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 11TH MEETING: LJUBLJANA， SI, no. m43027, 3 July 2018 (2018-07-03), XP030195752

Attorney, Agent or Firm:

LIU, SHEN & ASSOCIATES (CN)

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