Index signaling for reference picture list structures
By inferring or signaling RPL flags and indices based on PPS level flags, the method addresses inefficiencies in managing reference picture lists, reducing bandwidth demands and enhancing user experience in video coding.
AU2025202828B2Pending Publication Date: 2026-07-09HUAWEI TECH CO LTD
Patent Information
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-07-09
AI Technical Summary
Technical Problem
Existing video coding technologies face inefficiencies in managing reference picture lists, leading to increased bandwidth demands and reduced image quality due to unnecessary data transmission and storage requirements.
Method used
Implementing a method where reference picture list (RPL) flags and indices are inferred or explicitly signaled based on a picture parameter set (PPS) level flag, simplifying the coding process by reducing redundant data transmission.
Benefits of technology
This approach enhances coding efficiency by minimizing bandwidth usage and improving user experience through optimized video decoding and encoding processes.
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Abstract
A method of decoding a coded video bitstream is provided. The method includes parsing a flag; parsing a first reference picture list structure; determining that an index to a second reference picture list structure is not present in a slice header of the coded video bitstream and inferring that the index to the second reference picture list structure is the same as an index to the first reference picture list structure when the flag has a first value; determining that the index to the second reference picture list structure is present in the slice header when the flag has a second value; generating a reference picture list using the first reference picture list structure or the second reference picture list structure; and performing inter- prediction based on the reference picture list to generate a reconstructed block. 20 25 20 28 28 23 A pr 2 02 5 A B S T R A C T 2 0 2 5 2 0 2 8 2 8 2 3 A p r 2 0 2 5
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