Video Encoder Reliability Scoring for Low-Delay Compression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional video coding systems fail to fully exploit dependencies introduced by motion compensation and prediction, leading to suboptimal compression quality, especially in low-delay video compression, as they do not consider temporal variations and quality dependencies between frames.
Innovation Solution
An apparatus comprising an encoder circuit and a storage circuit that generates reliability and referral scores for each partition in the input data stream, using these scores to select encoding parameters and refine encoding decisions, thereby incorporating motion compensation and prediction dependencies into the video encoding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional video coding systems perform compression in a localized manner for individual frames, then compression quality for individual frames is optimized, but temporal variations and quality dependencies between different regions in neighboring frames are not considered
Solution Approach 1:
The video sequence is divided into partitions (e.g., macroblocks, slices) that can be processed independently, allowing the encoder to generate reliability and referral scores for each partition while maintaining the ability to consider temporal dependencies across partitions through the scoring mechanism
Solution Approach 2:
The encoder performs preliminary computation of reliability scores (based on previous frame quality) and referral scores (based on predicted future frame quality) before final encoding decisions are made, enabling proactive optimization of encoding parameters considering temporal dependencies
2Productivity
If motion compensation is used to encode prediction error signals, then compression efficiency is improved, but dependencies among encoded frames are introduced
Solution Approach 1:
The reliability score mechanism provides feedback about the quality of reference frames used in motion compensation, allowing the encoder to adjust encoding parameters for current frames based on the actual quality of previously encoded frames, thereby managing the complexity of frame dependencies
Solution Approach 2:
The encoder dynamically changes encoding parameters (such as quantization parameters) based on computed reliability and referral scores, allowing adaptation to the dependency structure introduced by motion compensation without fixed complex processing
3Manufacturing precision
If reliability and referral scores are computed for each partition, then encoding parameter selection is optimized, but computational complexity increases
Solution Approach 1:
Instead of computing exact quality metrics for all possible encoding scenarios (excessive action), the system computes simplified reliability and referral scores that capture the essential temporal dependency information (partial action), providing sufficient guidance for encoding parameter selection without full computational exhaustiveness
Data Source
AI summary
An apparatus comprising an encoder circuit and a storage circuit. The encoder circuit may be configured to generate a reliability score and a referral score for each partition in an input data stream. The input data stream may be encoded based upon the reliability score and the referral score for each partition. The storage circuit may be configured to store the reliability score for each partition of the input data stream.