Title:
BILATERAL TEMPLATE WITH MULTIPASS DECODER SIDE MOTION VECTOR REFINEMENT
Document Type and Number:
WIPO Patent Application WO/2023/186040
Kind Code:
A1
Abstract:
A video coder using bilateral template to perform decoder-side motion vector refinement is provided. The video coder receives receiving data for a block of pixels to be encoded or decoded as a current block of a current picture of a video. The current block is associated with a first motion vector referring a first initial predictor in a first reference picture and a second motion vector referring a second initial predictor in a second reference picture. The video coder generates a bilateral template based on the first initial predictor and the second initial predictor. The video coder refines the first motion vector to minimize a first cost between the bilateral template and a predictor referenced by the refined first motion vector. The video coder refines the second motion vector to minimize a second cost between the bilateral template and a predictor referenced by the refined second motion vector.
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Inventors:
LAI CHEN-YEN (CN)
CHEN HONG-HUI (CN)
CHEN CHING-YEH (CN)
CHEN CHUN-CHIA (CN)
HSU CHIH-WEI (CN)
CHUANG TZU-DER (CN)
HUANG YU-WEN (CN)
CHEN YI-WEN (US)
CHEN HONG-HUI (CN)
CHEN CHING-YEH (CN)
CHEN CHUN-CHIA (CN)
HSU CHIH-WEI (CN)
CHUANG TZU-DER (CN)
HUANG YU-WEN (CN)
CHEN YI-WEN (US)
Application Number:
PCT/CN2023/085224
Publication Date:
October 05, 2023
Filing Date:
March 30, 2023
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/513
Domestic Patent References:
| WO2020009898A1 | 2020-01-09 | |||
| WO2020177665A1 | 2020-09-10 | |||
| WO2020180685A1 | 2020-09-10 |
Foreign References:
| US20180192071A1 | 2018-07-05 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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