Title:
TEMPLATE-BASED INTRA MODE DERIVATION AND PREDICTION
Document Type and Number:
WIPO Patent Application WO/2023/198187
Kind Code:
A1
Abstract:
A method for performing template-based intra mode derivation (TIMD) with enhanced candidate intra-prediction modes is provided. A video coder determines a set of most probable modes (MPMs) for intra-coding the current block based on intra-prediction modes used to code neighboring blocks of the current block. The video coder determines a template of the current block among already-reconstructed pixels neighboring the current block. The video coder determines a set of candidate intra-prediction modes to include (i) the set of MPMs and (ii) one or more intra-prediction modes neighboring an MPM in the set of MPMs. The video coder derives an intra-prediction mode from the set of candidate intra-prediction modes based on the determined template and the set of candidate intra-prediction modes. The video coder encodes or decodes the current block by using the derived intra-prediction mode to generate an intra-prediction.
Inventors:
TSAI CHIA-MING (CN)
CHEN CHUN-CHIA (CN)
CHIANG MAN-SHU (CN)
LIN YU-CHENG (CN)
CHUANG TZU-DER (CN)
HSU CHIH-WEI (CN)
CHEN CHING-YEH (CN)
HUANG YU-WEN (CN)
CHEN CHUN-CHIA (CN)
CHIANG MAN-SHU (CN)
LIN YU-CHENG (CN)
CHUANG TZU-DER (CN)
HSU CHIH-WEI (CN)
CHEN CHING-YEH (CN)
HUANG YU-WEN (CN)
Application Number:
PCT/CN2023/088365
Publication Date:
October 19, 2023
Filing Date:
April 14, 2023
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/176
Foreign References:
| CN109328461A | 2019-02-12 | |||
| US20190222839A1 | 2019-07-18 | |||
| US20210014484A1 | 2021-01-14 | |||
| US20210274163A1 | 2021-09-02 |
Other References:
Y. WANG (BYTEDANCE), L. ZHANG (BYTEDANCE), K. ZHANG (BYTEDANCE), Z. DENG, N. ZHANG (BYTEDANCE): "EE2-related: Template-based intra mode derivation using MPMs", 22. JVET MEETING; 20210420 - 20210428; TELECONFERENCE; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 14 April 2021 (2021-04-14), XP030294221
X. XIU (INTERDIGITAL), Y. HE (INTERDIGITAL), Y. YE (INTERDIGITAL): "Decoder-side intra mode derivation", 3. JVET MEETING; 20160526 - 20160601; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 17 May 2016 (2016-05-17), XP030150161
X. XIU (INTERDIGITAL), Y. HE (INTERDIGITAL), Y. YE (INTERDIGITAL): "Decoder-side intra mode derivation", 3. JVET MEETING; 20160526 - 20160601; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 17 May 2016 (2016-05-17), XP030150161
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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