Title:
IMAGE ENCODING/DECODING METHOD AND APPARATUS FOR DETERMINING PREDICTION MODE OF CHROMA BLOCK BY REFERRING TO LUMA SAMPLE POSITION, AND METHOD FOR TRANSMITTING BITSTREAM
Document Type and Number:
WIPO Patent Application WO/2021/029744
Kind Code:
A1
Abstract:
An image encoding/decoding method and apparatus are provided. A method by which an image decoding apparatus performs image decoding, according to the present disclosure, can comprise the steps of: identifying a current chroma block by dividing an image; identifying whether a matrix-based intra prediction mode is applied to a first luma sample position corresponding to the current chroma block; identifying whether a predetermined prediction mode is applied to a second luma sample position corresponding to the current chroma block if the matrix-based intra prediction mode is not applied; and determining an intra prediction mode candidate of the current chroma block on the basis of an intra prediction mode applied to a third luma sample position corresponding to the current chroma block if the predetermined prediction mode is not applied.
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Inventors:
JANG HYEONG MOON (KR)
HEO JIN (KR)
HEO JIN (KR)
Application Number:
PCT/KR2020/010904
Publication Date:
February 18, 2021
Filing Date:
August 14, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/11; H04N19/119; H04N19/132; H04N19/176; H04N19/186; H04N19/597
Foreign References:
| KR20170103924A | 2017-09-13 | |||
| KR20180126384A | 2018-11-27 | |||
| KR20180135075A | 2018-12-19 | |||
| US20190208217A1 | 2019-07-04 | |||
| KR20180026396A | 2018-03-12 |
Other References:
See also references of EP 4017000A4
Attorney, Agent or Firm:
SUNG, Byung Kee (KR)
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