Image Decoding with Additional Regions for Tile Prediction
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Solution Overview
Problem
Existing image encoding methods struggle with inefficient compression due to independent encoding of tiles, lacking reference to adjacent image data and suboptimal intra prediction, which affects compression efficiency and accuracy.
Innovation Solution
The method involves dividing encoded images into units with additional areas, allowing reference to adjacent data and supporting multiple reference pixel layers with adaptive filtering, enhancing intra prediction accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If independent encoding is performed for each tile, then parallel processing is maintained, but reference to adjacent image data is not possible
Solution Approach 1:
The patent applies preliminary action by creating additional regions that contain reference image data before the actual encoding process. These additional regions are prepared in advance and made available to tiles during encoding, enabling tiles to reference adjacent data without requiring complex inter-tile coordination or breaking parallel processing independence.
2Device complexity
If nearest pixels are used for intra prediction, then simple reference configuration is maintained, but prediction accuracy may be insufficient for certain image types
Solution Approach 1:
The patent applies dynamics by making the reference pixel configuration adaptive rather than fixed. The system dynamically selects reference pixels based on image characteristics and block position, allowing the reference configuration to change according to the specific requirements of different image types and regions, thereby improving prediction accuracy while maintaining manageable complexity through automated adaptation.
Data Source
AI summary
The invention relates to a method and a device for decoding an image by means of a partition unit comprising an additional region. The method of decoding an image by means of a partition unit comprising an additional region comprises the steps of: partitioning, by reference to a syntax element acquired from a received bit stream, an encoded image, which is included in the bitstream, in at least one partition unit; define an additional region for at least one partition unit; and decoding the encoded image based on the partition unit for which the additional region is defined. The invention improves the image coding efficiency.