Title:
METHOD AND APPARATUS OF ENTROPY CODING FOR SCALABLE VIDEO CODING
Document Type and Number:
WIPO Patent Application WO/2024/041249
Kind Code:
A1
Abstract:
A method and apparatus of context initialization for entropy coding. According to one method, previous context states derived from one or more previous slices for an arithmetic entropy coder are determined, where the previous context states are stored in multiple context state buffers and different context state buffers are used to store the previous context states for different temporal sublayers. Target context states are determined from the previous context states for the current slice in a current temporal sublayer indicated by a current temporal ID, wherein a target context state buffer storing the target context states is determined according to the current temporal ID.A current set of context states for the arithmetic entropy coder is initialized using the target context states. The input data is encoded or decoded using the arithmetic entropy coder after said initializing the current set of context states for the arithmetic entropy coder.
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Inventors:
HSIANG SHIH-TA (CN)
Application Number:
PCT/CN2023/106862
Publication Date:
February 29, 2024
Filing Date:
July 12, 2023
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/91; H04N19/00
Domestic Patent References:
| WO2018122092A1 | 2018-07-05 |
Foreign References:
| US20150334425A1 | 2015-11-19 | |||
| CN106331715A | 2017-01-11 | |||
| JP2011055180A | 2011-03-17 | |||
| US20190158837A1 | 2019-05-23 |
Other References:
T. NGUYEN; A. SAID: "Description of Core Experiment 5 (CE5): Arithmetic Coding Engine", 10. JVET MEETING; 10-4-2018 - 20-4-2018; SAN DIEGO; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://PHENIX.INT-EVRY.FR/JVET/, 31 May 2018 (2018-05-31), XP030151321
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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