Title:
METHOD AND APPARATUS FOR ADAPTIVE LOOP FILTER WITH CHROMA CLASSIFIERS BY TRANSPOSE INDEXES FOR VIDEO CODING
Document Type and Number:
WIPO Patent Application WO/2024/067188
Kind Code:
A1
Abstract:
A method and apparatus of ALF classification and/or geometric transformation for the chroma component. According to the method, reconstructed pixels are received, where the reconstructed pixels comprise a current colour block and the current colour block comprises a current luma block and a current chroma block. A transpose index for the current chroma block is determined. A filtered chroma output is derived by applying a target chroma ALF to the current chroma block, where the transpose index is included in information used for selecting the target chroma ALF from a set of chroma ALFs, or the transpose index is used to select a target geometric transformation for generating the target chroma ALF, or both. Filtered-reconstructed pixels are provided, where the filtered-reconstructed pixels comprise the filtered chroma output.
Inventors:
HSIAO YU-LING (CN)
CHIU SHIH-CHUN (CN)
LIN YU-CHENG (CN)
HSU CHIH-WEI (CN)
CHEN CHING-YEH (CN)
CHUANG TZU-DER (CN)
HUANG YU-WEN (CN)
CHIU SHIH-CHUN (CN)
LIN YU-CHENG (CN)
HSU CHIH-WEI (CN)
CHEN CHING-YEH (CN)
CHUANG TZU-DER (CN)
HUANG YU-WEN (CN)
Application Number:
PCT/CN2023/119301
Publication Date:
April 04, 2024
Filing Date:
September 18, 2023
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/117
Foreign References:
| US20130101018A1 | 2013-04-25 | |||
| US20200329239A1 | 2020-10-15 | |||
| US20220303586A1 | 2022-09-22 | |||
| US20220201292A1 | 2022-06-23 | |||
| CN113301333A | 2021-08-24 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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