Scalable Video Coding Intra Prediction Mode Set
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Solution Overview
Problem
Current video coding technologies, such as H.264/AVC, face limitations in compression efficiency and scalability, particularly when handling high-definition and ultra-high-definition video content, necessitating a more advanced method for improving coding/decoding efficiency while maintaining picture quality and reducing bandwidth and storage requirements.
Innovation Solution
A scalable video coding method and apparatus that configures a maximum probability mode set for intra prediction in the enhancement layer, incorporating intra prediction modes from the reference layer to enhance decoding efficiency, allowing for improved prediction and reduced bitstream size through inter-layer intra prediction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional video coding methods (H.264/AVC) are used, then implementation is simple and widely compatible, but compression efficiency is insufficient for high-definition and ultra-high-definition video content
Solution Approach 1:
The video content is divided into multiple layers including base layer and enhancement layer, allowing independent processing and decoding of different quality levels. This segmentation enables efficient compression by separating essential information from enhancement information.
Solution Approach 2:
The patent introduces inter-layer prediction as an additional dimension beyond traditional intra-layer prediction. By utilizing prediction modes from the reference layer to predict the enhancement layer, the system achieves better compression efficiency without proportionally increasing complexity.
2Manufacturing precision
If higher resolution and picture quality are provided, then user satisfaction increases, but bandwidth and storage requirements increase significantly
Solution Approach 1:
The base layer is decoded first to provide a reference for enhancement layer prediction. This preliminary action allows the enhancement layer to leverage existing decoded information, reducing the amount of data that needs to be transmitted and stored for high-quality video.
Solution Approach 2:
The patent changes the prediction parameter space by incorporating inter-layer prediction modes into the mode set. This allows the system to achieve better picture quality at lower bit rates by utilizing prediction information from the reference layer, effectively changing how compression parameters are selected and applied.
3Productivity
If intra prediction modes from reference layer are incorporated into enhancement layer, then coding efficiency improves, but decoding complexity increases
Solution Approach 1:
The same prediction mode set is used for both base layer and enhancement layer, with the enhancement layer benefiting from the reference layer's prediction modes. This universal approach allows the system to achieve improved coding efficiency while managing decoding complexity through shared processing logic.
Data Source
AI summary
The present invention relates to a scalable video coding method and apparatus using an intra prediction mode. A decoding method includes configuring a maximum probability mode set for predicting an intra prediction mode for a target decoding block of an enhancement layer so that the maximum probability mode set includes an intra prediction mode for a corresponding block of a reference layer and restoring the target decoding block of the enhancement layer using any one of intra prediction modes included in the maximum probability mode set.