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Patent Searching and Data


Title:
IMAGE ENCODING/DECODING METHOD AND APPARATUS USING IBC PREDICTION, AND METHOD FOR TRANSMITTING BITSTREAM
Document Type and Number:
WIPO Patent Application WO/2020/184990
Kind Code:
A1
Abstract:
An image encoding/decoding method and apparatus are provided. An image decoding method according to the disclosure comprises the steps of: determining a prediction mode of a current block on the basis of prediction mode information about the current block acquired from a bitstream; determining a motion vector of the current block on the basis of a motion vector candidate derived from a peripheral block of the current block when the prediction mode of the current block is an intra block copy (IBC) mode; determining a prediction block of the current block on the basis of the motion vector; and generating a restoration block of the current block by using the prediction block. The motion vector of the present block can be determined on the basis of the information about the motion vector candidate and the size of the current block.

Inventors:
JANG HYEONG MOON (KR)
Application Number:
PCT/KR2020/003409
Publication Date:
September 17, 2020
Filing Date:
March 11, 2020
Export Citation:
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Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/11; H04N19/105; H04N19/139; H04N19/176; H04N19/593
Foreign References:
US20180014026A12018-01-11
KR20180030996A2018-03-27
US20180152727A12018-05-31
Other References:
BROSS, BENJAMIN ET AL.: "Versatile Video Coding (Draft 4)", JVET-M1001-V6. JOINT VIDEO EXPERTS TEAM (JVET) OF [TU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11. 13TH MEETING, 9 March 2019 (2019-03-09), Marrakech, MA, pages 1 - 284, XP030202602
NAM, JUNGHAK ET AL.: "CE8: Block vector prediction for CPR (test 8.1.1a and test 8.1.1b)", JVET-M0332. JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11. 13TH MEETING, 9 January 2019 (2019-01-09), Marrakech, MA, pages 1 - 8, XP030201171
Attorney, Agent or Firm:
SUNG, Byung Kee (KR)
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