Video Coding Geometric Partitioning Mode Efficiency
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Solution Overview
Problem
Conventional video coding techniques, such as MPEG-2, MPEG-4, ITU-T.263, ITU-T.264/AVC, HEVC, and VVC, suffer from low coding efficiency, which is undesirable for digital video applications.
Innovation Solution
The proposed method improves coding efficiency by determining and storing coding information for geometric partitioning mode (GPM) and generating multiple hypothesis prediction blocks based on intra predictions during the conversion between video blocks and bitstreams, optimizing the conversion process to enhance performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional video coding techniques are used, then the implementation is simple, but the coding efficiency is low
Solution Approach 1:
The target block is divided into two parts using geometric partitioning (first part and second part). Different prediction modes are applied to different parts, allowing the encoder to select the most efficient mode for each region, thereby improving overall coding efficiency while maintaining manageable complexity through structured division
Solution Approach 2:
The patent implements dynamic mode selection where the encoder chooses between intra prediction and inter prediction modes based on the characteristics of each block. The use of multiple hypothesis prediction with different intra prediction modes (planar, angular, DC) allows adaptive optimization, improving coding efficiency by dynamically selecting the best prediction strategy for each block
2Productivity
If geometric partitioning mode is applied to improve coding efficiency, then more information needs to be stored and processed
Solution Approach 1:
The patent extracts and stores only the essential geometric partitioning information (partitioning direction and angle) rather than storing complete prediction data for both parts. The decoder reconstructs the full prediction by applying the stored geometric parameters to generate the prediction blocks, reducing information storage requirements while maintaining coding efficiency
Solution Approach 2:
The patent performs preliminary geometric partitioning and stores the partitioning parameters before the actual prediction process. This preliminary structuring allows the decoder to efficiently reconstruct the partitioned blocks using the stored parameters, reducing the amount of information that needs to be stored and transmitted
3Productivity
If multiple hypothesis prediction blocks are generated, then coding performance improves, but processing complexity increases
Solution Approach 1:
The patent generates multiple hypothesis prediction blocks using different intra prediction modes (planar, angular, DC) to explore multiple possibilities. By evaluating several hypotheses and selecting the best one, the patent improves coding performance while keeping processing complexity manageable through the use of standard prediction modes rather than exhaustive search
Data Source
AI summary
Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target block of a video and a bitstream of the target block, storing information about coding information of a first part of the target block, the target block being coded with a geometric partitioning mode (GPM); and performing the conversion based on the storing information.