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Title:
VIDEO DECODING METHOD AND APPARATUS, AND VIDEO ENCODING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/216722
Kind Code:
A1
Abstract:
Proposed are a method and an apparatus for encoding or decoding video, which: in a video encoding and decoding process, determine whether an intra-prediction mode of a current block is a DC mode; if the intra-prediction mode of the current block is the DC mode, when the height and the width of the current block are identical, determine, as a DC value, an average of upper reference samples of the current block and left reference samples of the current block; when the height and the width of the current block are different, determine, as an upper DC value, an average of the upper reference samples of the current block, determine, as a left DC value, an average of the left reference samples of the current block, and determine, as a DC value, a weight average value determined by combining predetermined weights with the upper DC value and the left DC value; and perform intra-prediction of the current block on the basis of the DC value.

Inventors:
CHOI NARAE (KR)
KIM CHANYUL (KR)
PARK MINSOO (KR)
PARK MINWOO (KR)
JEONG SEUNGSOO (KR)
CHOI KIHO (KR)
CHOI WOONGIL (KR)
TAMSE ANISH (KR)
PIAO YINJI (KR)
Application Number:
PCT/KR2019/005679
Publication Date:
November 14, 2019
Filing Date:
May 10, 2019
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04N19/11; H04N19/105; H04N19/132; H04N19/176; H04N19/593
Domestic Patent References:
WO2017090993A12017-06-01
WO2017069419A12017-04-27
Foreign References:
KR20130027400A2013-03-15
KR20150084408A2015-07-22
KR20140004094A2014-01-10
Attorney, Agent or Firm:
Y.P.LEE,MOCK & PARTNERS (KR)
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