Hybrid Prediction Tool for Video Block Coding Efficiency
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Solution Overview
Problem
Conventional video coding techniques suffer from low coding efficiency, which is undesirable for digital video applications.
Innovation Solution
The proposed method involves using a hybrid prediction tool to determine predictions for video blocks based on candidate predictions, incorporating motion data, intra prediction information, and blending prediction samples with weights to improve coding effectiveness and efficiency during the conversion between video blocks and bitstreams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional video coding techniques are used, then the processing is simple, but the coding efficiency is low
Solution Approach 1:
The patent combines multiple prediction methods (intra-prediction and inter-prediction) into a hybrid prediction approach. The system merges different prediction candidates from various sources (temporal, spatial, and intra-block copies) to generate improved prediction signals, thereby increasing coding efficiency while managing complexity through integrated processing
2Reliability
If hybrid prediction tool is used to determine target prediction based on multiple candidate predictions, then coding effectiveness is improved, but processing complexity increases
Solution Approach 1:
The patent segments the prediction process into multiple independent stages: generating intra-prediction candidates, generating inter-prediction candidates, and combining them through hybrid prediction. This segmentation allows each prediction method to be optimized independently while maintaining overall system reliability through comprehensive candidate evaluation
Solution Approach 2:
The system dynamically adjusts prediction parameters and weights based on the specific characteristics of each video block. By changing prediction parameters adaptively (such as blending weights between intra and inter predictions), the system achieves reliable coding effectiveness without requiring excessive processing complexity for all possible cases
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 video block of a video and a bitstream of the video, a plurality of partitions of the target video block, the target video block being coded by a hybrid prediction tool, the hybrid prediction tool being used for determining a target prediction for the target video block based on a plurality of candidate predictions of the target video block; and performing the conversion between the target video block and the bitstream.