Title:
METHOD AND DEVICE FOR PROCESSING VIDEO SIGNAL FOR INTER PREDICTION
Document Type and Number:
WIPO Patent Application WO/2020/184958
Kind Code:
A1
Abstract:
The embodiments of the present specification provide a method and a device for processing a video signal for inter prediction. A method for decoding a video signal according to an embodiment of the present specification comprises the steps of: obtaining a symmetric motion vector difference (SMVD) flag of a current block, wherein the SMVD flag relates to whether a second motion vector difference (MVD) for predicting a second direction is determined on the basis of a first MVD for predicting a first direction; checking conditions for a decoder side motion vector refinement (DMVR) on the basis of the SMVD flag; and generating a prediction sample of the current block on the basis of the conditions for the DMVR.
Inventors:
JANG HYEONGMOON (KR)
Application Number:
PCT/KR2020/003337
Publication Date:
September 17, 2020
Filing Date:
March 10, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/513; H04N19/105; H04N19/132; H04N19/139; H04N19/70; H04N19/82
Foreign References:
| US20180359483A1 | 2018-12-13 | |||
| KR20180107761A | 2018-10-02 |
Other References:
CHEN H; YANG H; CHEN J: "CE4: Symmetrical mode for bi-prediction (Test 3.2)", JVET -K0188-V2, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC J TC 1/SC 29/WG 11, 11TH MEETING, vol. 1-3, no. K0188-v2, 10 July 2018 (2018-07-10), Ljubljana, SI, pages 1 - 2, XP030199229
LUO J; HE Y: "CE4-related: Simplified symmetric MVD based on CE4.4.3", JVET-M0444-V6, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 13TH MEETING, vol. 1-3, no. M0444-v6, 15 January 2019 (2019-01-15), Marrakech, MA, pages 1 - 2, XP030202233
C-C CHEN; HAN Y; HUANG H; ZHANG Y; C-H HUNG; W-J CHIEN; KARCZEWICZ M: "CE9.2.13: MVD-based Early-skip Method and Switchable MC Filters for DMVR", JVET-L0244-V2, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-TSG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 12TH MEETING, vol. 1-6, no. JVET-L0244-v2, 1 October 2018 (2018-10-01), Macao, CN, pages 1 - 3, XP030194188
AU - ESENLIK S; KRASNOV I; ZHAO Z; CHEN J; LI Y: "CE9: DMVR with Motion Vector Difference Mirroring (Test 1 .6)", JVET-K0216-V4, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 11TH MEETING, vol. 1-5, no. K0216-v4, 11 July 2018 (2018-07-11), Ljubljana, SI, pages 1 - 3, XP030199427
LUO J; HE Y: "CE4-related: Simplified symmetric MVD based on CE4.4.3", JVET-M0444-V6, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 13TH MEETING, vol. 1-3, no. M0444-v6, 15 January 2019 (2019-01-15), Marrakech, MA, pages 1 - 2, XP030202233
C-C CHEN; HAN Y; HUANG H; ZHANG Y; C-H HUNG; W-J CHIEN; KARCZEWICZ M: "CE9.2.13: MVD-based Early-skip Method and Switchable MC Filters for DMVR", JVET-L0244-V2, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-TSG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 12TH MEETING, vol. 1-6, no. JVET-L0244-v2, 1 October 2018 (2018-10-01), Macao, CN, pages 1 - 3, XP030194188
AU - ESENLIK S; KRASNOV I; ZHAO Z; CHEN J; LI Y: "CE9: DMVR with Motion Vector Difference Mirroring (Test 1 .6)", JVET-K0216-V4, JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 11TH MEETING, vol. 1-5, no. K0216-v4, 11 July 2018 (2018-07-11), Ljubljana, SI, pages 1 - 3, XP030199427
Attorney, Agent or Firm:
ROYAL PATENT & LAW OFFICE (KR)
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