Adaptive Binarization for Palette Mode Video Coding
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Solution Overview
Problem
Current video coding technologies face challenges in efficiently encoding and decoding high-definition, 4K×2K, and 8K×4K video data while maintaining image quality.
Innovation Solution
The implementation of a method and system for video encoding and decoding using palette mode, which involves determining syntax elements to choose between different binarization processes for encoding video data, and using adaptive binarization processes to efficiently encode and decode video data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional video coding standards (MPEG-4, H.264, H.265) are used for high-definition, 4K×2K, and 8K×4K video data, then video quality can be maintained, but coding efficiency and compression performance deteriorate due to exponential growth in data volume
Solution Approach 1:
The patent applies parameter changes by dynamically selecting different binarization processes (e.g., fixed-length binarization vs. variable-length binarization) based on the characteristics of video content and syntax elements. This allows the coding system to adapt its parameters to achieve better compression performance for different types of video data while maintaining quality
Solution Approach 2:
The invention introduces dynamic selection of binarization methods based on content analysis. The system dynamically switches between different encoding approaches (palette mode with fixed-length binarization for certain regions, variable-length binarization for others) to optimize compression efficiency for high-resolution video data
2Ease of operation
If fixed-length binarization process is used for all syntax elements, then decoding simplicity is improved, but compression performance deteriorates due to insufficient adaptability to different data characteristics
Solution Approach 1:
The system dynamically selects between fixed-length and variable-length binarization processes based on syntax element characteristics and content type. This dynamic approach maintains decoding simplicity where applicable while improving compression performance where adaptability is needed
Solution Approach 2:
The patent changes the binarization parameter (fixed-length vs. variable-length) based on the specific syntax element being encoded and the video content characteristics, allowing optimization of compression performance without significantly complicating the decoding process
3Productivity
If variable-length binarization process is used for all syntax elements, then compression performance is improved, but decoding complexity and processing time increase
Solution Approach 1:
The patent segments the video data and syntax elements into different categories, applying fixed-length binarization to certain segments (e.g., palette mode indicators, certain header elements) and variable-length binarization to others. This segmentation reduces overall decoding complexity while maintaining compression performance benefits where needed
Solution Approach 2:
The system changes the binarization parameter based on the specific syntax element type and content characteristics, using fixed-length for simple elements and variable-length for complex elements, thereby balancing compression performance with decoding complexity
Data Source
AI summary
An electronic apparatus performs a method of encoding video data. The method comprises: determining a first syntax element for a first set of palette mode coding units at a first coding level; in accordance with a determination that the first syntax element has a first predefined value: choosing a first binarization process for samples of the first set of palette mode coding units; encoding, into bitstream, the samples of the first set of palette mode coding units using the first binarization process; in accordance with a determination that the first syntax element does not have the first predefined value: choosing a second binarization process for the samples of the first set of palette mode coding units, the second binarization process being different from the first binarization process; and encoding, into the bitstream, the samples of the first set of palette mode coding units using the second binarization process.