SIGNAL OF SYNTAX ELEMENTS NOT AT THE IMAGE LEVEL AT THE IMAGE LEVEL

MX435472BActive Publication Date: 2026-06-12HUAWEI TECH CO LTD
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Patent Information

Application Number
MX2024015676
Authority / Receiving Office
MX · MX
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-09-24
Filing Date
2022-03-22
Publication Date
2026-06-12
Estimated Expiration
2040-09-23

AI Technical Summary

Technical Problem

Current video coding techniques face challenges in efficiently compressing and decompressing video data, leading to increased bandwidth requirements and storage needs, particularly due to redundancy in signaling non-picture-level syntax elements across multiple slices within a picture.

Method used

The method involves signaling non-picture-level syntax elements at the picture level, where these elements are included in the picture header if they are the same across all slices, and in slice headers if they vary, thereby reducing redundancy and bit wastage in the encoded bitstream.

Benefits of technology

This approach enhances compression efficiency by eliminating redundant signaling, thereby improving the compression ratio with minimal impact on image quality, reducing bandwidth requirements, and optimizing storage needs.

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Abstract

A method implemented by a video decoder comprising: receiving, by the video decoder, a video bitstream comprising an RPL flag, wherein the RPL flag equal to a first value specifies that RPL signaling is present in a picture header (PH), and wherein the RPL flag equal to a second value specifies that RPL signaling is not present in the PH and may be present in sector headers; and decoding, by the video decoder using the RPL flag, an encoded image to obtain a decoded image.A method implemented by a video decoder and comprising: receiving, by the video decoder, a video bitstream comprising an SAO flag, wherein the SAO flag specifies that the SAO information may be present or not present in a PH or specifies that the SAO information may be present or not present in sector headers; and decoding, by the video decoder using the SAO flag, an encoded image to obtain a decoded image.
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