Chroma Intra Mode Configuration Using Luma Availability
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Solution Overview
Problem
Existing video compression techniques face challenges in efficiently encoding and decoding video data due to increasing data volumes and the need for improved coding efficiency and image quality, particularly in configuring candidate intra modes for chroma blocks.
Innovation Solution
A method is provided for configuring candidate intra modes by determining the availability of encoding modes for luma regions corresponding to chroma blocks and setting a direct mode (DM) as the default when luma region modes are unavailable, utilizing a video decoding apparatus with a determination, setting, and configuration unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video data is stored or transmitted in raw form, then data quality is preserved, but hardware resources and memory requirements increase significantly
Solution Approach 1:
The patent applies preliminary compression action by encoding video data before storage or transmission. The encoding process reduces data volume in advance, so that when the video is later decoded and reproduced, the quality is restored without requiring excessive hardware resources during storage or transmission phases.
2Quantity of substance
If compression techniques are applied to reduce data volume, then hardware resource requirements decrease, but coding efficiency and image quality may deteriorate
Solution Approach 1:
The patent employs parameter changes by adjusting compression parameters and encoding settings to optimize the balance between data volume reduction and image quality preservation. By carefully selecting and modifying compression parameters, the system achieves efficient compression while maintaining acceptable image quality for the application.
3Productivity
If existing compression techniques like H.264/AVC are used, then video data can be compressed, but coding efficiency improvement is limited and requires superior new techniques
Solution Approach 1:
The patent applies segmentation by dividing the video data processing into distinct encoding and decoding phases, with specific focus on intra-mode configuration for chroma blocks. This segmentation allows for targeted optimization of compression algorithms, improving overall coding efficiency by addressing specific aspects of video compression independently.
Data Source
AI summary
A method of configuring candidate intra modes and a video decoding apparatus are disclosed. At least one embodiment of the present disclosure provides a method of configuring candidate intra modes for a chroma block, including determining whether a luma region corresponding to the chroma block has an encoding mode that is available for use, setting a direct mode (DM) among the candidate intra modes as a default mode when the encoding mode of the luma region is not available, and configuring the candidate intra modes by including the DM.