Template Matching Prediction Integration for VVC Intra Coding
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Solution Overview
Problem
Existing video coding standards like VVC lack efficient integration of template matching prediction (TMP) with other intra prediction tools, leading to suboptimal compression efficiency.
Innovation Solution
Integrate template matching prediction (TMP) in VVC by defining interactions with tools like ISP, MIP, MRL, MTS, and LFNST, and modify signaling and transform processes to enhance compatibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If template matching prediction is integrated with multiple intra prediction tools (ISP, MIP, MRL, MTS, LFNST), then compression efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the complex integration of multiple coding tools by defining a hierarchical interaction framework where TMP is integrated with individual tools (ISP, MIP, MRL, MTS, LFNST) through separate, well-defined interfaces. Each tool interaction is handled as an independent module, allowing the system to achieve high compression efficiency through comprehensive tool integration while managing complexity through structured segmentation of the integration process.
2Productivity
If template matching prediction is integrated with multiple intra prediction tools, then compression efficiency is improved, but processing time increases
Solution Approach 1:
The patent applies preliminary action by establishing predefined interaction rules and priority schemes for TMP with multiple coding tools before actual encoding/decoding operations. The framework pre-defines how TMP interacts with ISP, MIP, MRL, MTS, and LFNST, including priority levels and combination rules, which reduces processing time during actual video coding by avoiding complex real-time decision-making while still achieving improved compression efficiency through comprehensive tool integration.
Data Source
AI summary
Template matching prediction is combined with additional coding tools to provide a robust set of coding/decoding tools by advantageous use of syntax elements. Some of the additional coding tools comprise matrix intra prediction, intra sub-partitioning, low frequency non-separable transform, multiple transform selection.