Method and apparatus for signaling syntax elements in video coding

By receiving and judging the syntax elements in the image parameter set and image header in the video encoding and decoding technology, the problems of low compression efficiency and lower video quality in the prior art are solved, and more efficient and high-quality video encoding and decoding are achieved.

CN117278750BActive Publication Date: 2025-03-28BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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Patent Information

Application Number
CN202310868493.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-05-20
Filing Date
2021-05-20
Publication Date
2025-03-28
Estimated Expiration
2041-05-20

AI Technical Summary

Technical Problem

When existing video encoding and decoding technologies process video images, it is difficult to effectively signal syntax elements, resulting in low compression efficiency of video data and degradation of video quality.

Method used

The decoder receives syntax elements in the image parameter set (PPS), determines whether the image includes one or more network abstraction layer (NAL) units, and determines whether these NAL units have the same type. At the same time, the syntax element in the image header (PH) is received to determine whether the image is an intra-random access point (IRAP) image or a progressive intra-refresh (GDR) image.

Benefits of technology

More effective video data compression is achieved, the efficiency and quality of video encoding and decoding is improved, and the image processing process is optimized through accurate signaling syntax elements.

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Abstract

A method and apparatus for video coding and decoding are provided. The method includes receiving, by a decoder, a first syntax element in a picture parameter set (PPS), the first syntax element specifying whether a picture corresponding to the PPS includes one or more network abstraction layer (NAL) units and whether the one or more NAL units have the same NAL unit type, receiving a second syntax element in a picture header (PH), the second syntax element specifying whether the picture corresponding to the PH is an intra random access point (IRAP) picture or a progressive intra refresh (GDR) picture, and determining a value of the first syntax element based on a value of the second syntax element or determining a value of the second syntax element based on a value of the first syntax element.
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