Title:
METHOD AND DEVICE FOR IMAGE CODING BASED ON DECODER-SIDE MOTION VECTOR REFINEMENT
Document Type and Number:
WIPO Patent Application WO/2023/055176
Kind Code:
A1
Abstract:
An image decoding method performed by a decoding device is provided. The method comprises the steps of: deriving a motion vector of a current block; deriving a refined motion vector regarding the current block by applying decoder-side motion vector refinement (DMVR) to the motion vector; deriving prediction samples regarding the current block on the basis of the refined motion vector; and generating reconstruction samples regarding the current block on the basis of the prediction samples, wherein the refined motion vector is derived on the basis of a search end condition of the decoder-side motion vector refinement.
Inventors:
PALURI SEETHAL (KR)
KIM SEUNGHWAN (KR)
KIM SEUNGHWAN (KR)
Application Number:
PCT/KR2022/014767
Publication Date:
April 06, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/513; H04N19/119; H04N19/132; H04N19/176; H04N19/44; H04N19/70
Foreign References:
| KR20200078609A | 2020-07-01 | |||
| KR20210111859A | 2021-09-13 | |||
| US20210266594A1 | 2021-08-26 | |||
| US20200128258A1 | 2020-04-23 |
Other References:
Y.-J. CHANG (QUALCOMM), C.-C. CHEN (QUALCOMM), J. DONG (QUALCOMM), N. HU (QUALCOMM), H. HUANG (QUALCOMM), M. KARCZEWICZ (QUALCOMM): "EE2: Tests of compression efficiency methods beyond VVC", 22. JVET MEETING; 20210420 - 20210428; TELECONFERENCE; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 20 April 2021 (2021-04-20), XP030294306
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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