Title:
EXTENDED TEMPLATE MATCHING FOR VIDEO CODING
Document Type and Number:
WIPO Patent Application WO/2023/202569
Kind Code:
A1
Abstract:
Methods for using extended templates to refine motion vectors is provided. A video coder generates a template for a current block based on an average of prediction samples in first and second reference pictures referenced by first and second motion vectors. The template and the current block may be different in size or shape. The video coder searches the first reference picture to refine the first motion vector based on a matching cost between samples referred by the refined first motion vector and the samples of the template. The video coder searches the second reference picture to refine the second motion vector based on a matching cost between samples referred by the refined second motion vector and the samples of the template. The video coder uses the refined first and second motion vectors to encode or decode the current block.
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Inventors:
CHEN HONG-HUI (CN)
LAI CHEN-YEN (CN)
CHEN CHUN-CHIA (CN)
HSU CHIH-WEI (CN)
CHUANG TZU-DER (CN)
CHEN CHING-YEH (CN)
HUANG YU-WEN (CN)
LAI CHEN-YEN (CN)
CHEN CHUN-CHIA (CN)
HSU CHIH-WEI (CN)
CHUANG TZU-DER (CN)
CHEN CHING-YEH (CN)
HUANG YU-WEN (CN)
Application Number:
PCT/CN2023/088940
Publication Date:
October 26, 2023
Filing Date:
April 18, 2023
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/132
Foreign References:
| CN110581992A | 2019-12-17 | |||
| EP3443746A1 | 2019-02-20 | |||
| CN110719469A | 2020-01-21 | |||
| CN111903131A | 2020-11-06 | |||
| CN112106367A | 2020-12-18 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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