Profile Tier Level Signaling for Lower Video Decoding Complexity
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Solution Overview
Problem
Existing video coding standards face challenges in efficiently signaling level information for coded video data, which is crucial for decoding and encoding processes, particularly in next-generation video coding technologies like Versatile Video Coding (VVC), leading to inefficiencies in data compression and decoding complexity.
Innovation Solution
A method and device for signaling a syntax element indicating a profile, context, and level information in a specific order within the profile tier level syntax structure, allowing for efficient parsing and decoding of video data, applicable to future video coding standards beyond ITU-T H.265 and JVET-O2001.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If level information is signaled using existing video coding standards, then decoding can be performed, but data compression efficiency is reduced and decoding complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-defining the syntax structure and signaling order for level information in the profile tier level syntax structure. The level syntax element is positioned to immediately follow the context syntax element, allowing the decoder to parse level information without needing to analyze subsequent syntax elements, thereby reducing decoding complexity while maintaining efficiency
Solution Approach 2:
The patent segments the syntax structure by separating the level information signaling into a distinct syntax element that can be parsed independently. This segmentation allows the level information to be extracted and processed separately from other video coding parameters, improving decoding efficiency and reducing the overall complexity of parsing operations
Data Source
AI summary
A device may be configured to signal level information according to one or more of the techniques described herein.