Invention Grant
- Patent Title: Method for transform-based image coding and apparatus therefor
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Application No.: US17729400Application Date: 2022-04-26
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Publication No.: US11758142B2Publication Date: 2023-09-12
- Inventor: Moonmo Koo , Hyeongmoon Jang , Seunghwan Kim , Jaehyun Lim
- Applicant: LG Electronics Inc.
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Fish & Richardson P.C.
- Main IPC: H04N19/132
- IPC: H04N19/132 ; H04N19/159 ; H04N19/176 ; H04N19/18 ; H04N19/186

Abstract:
A method for image decoding, according to the present document, may comprise the steps of: deriving an intra prediction mode of a chroma block as a cross-component linear model (CCLM) mode; updating the intra prediction mode of the chroma block on the basis of an intra prediction mode of a luma block corresponding to the chroma block; and determining an LFNST set including LFNST matrices on the basis of the updated intra prediction mode, wherein the updated intra prediction mode is derived as an intra prediction mode corresponding to a specific position in the luma block, and the specific position is set on the basis of a color format of the chroma block.
Public/Granted literature
- US20220264101A1 METHOD FOR TRANSFORM-BASED IMAGE CODING AND APPARATUS THEREFOR Public/Granted day:2022-08-18
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