Adaptive Video Fidelity Testing via Network Quality Monitoring
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Solution Overview
Problem
Current methods for determining video fidelity across network paths are computationally intensive and resource-heavy, making them impractical for frequent use due to high computational requirements, especially in networks without quality-of-service guarantees.
Innovation Solution
A method that assesses the quality of service of a network path and adjusts the frequency of fidelity testing based on changes in network conditions, performing tests more frequently under worse conditions and less frequently under stable conditions, using a combination of objective and subjective tests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If full-reference or reduced reference techniques are used to determine video fidelity, then measurement precision is improved, but computational overhead increases significantly
Solution Approach 1:
The patent applies partial action by performing fidelity tests selectively rather than continuously. The system monitors network path quality metrics and only initiates full fidelity comparisons when degradation is detected, performing partial assessments (network metric monitoring) most of the time and full assessments only when necessary, thus reducing overall computational overhead while maintaining measurement precision when needed
Solution Approach 2:
The patent uses preliminary action by monitoring network path quality metrics (bandwidth, error rate, latency) before performing full fidelity tests. This preliminary monitoring allows the system to predict when fidelity degradation might occur and prepare for selective testing, avoiding the need for continuous computationally intensive full-reference comparisons
2Measurement precision
If fidelity tests are performed frequently to ensure accurate video quality assessment, then measurement precision is improved, but loss of time increases due to computational requirements
Solution Approach 1:
The patent implements periodic action by scheduling fidelity tests based on monitored network conditions rather than using fixed time intervals. The system performs tests periodically when network metrics indicate potential degradation, adjusting the testing frequency dynamically based on network stability, thus reducing total processing time while maintaining assessment accuracy when degradation occurs
Solution Approach 2:
The patent applies dynamics by making the fidelity testing frequency adaptive rather than static. The system continuously monitors network path quality and adjusts the rate of fidelity tests in real-time, increasing test frequency when degradation is detected and decreasing it when network conditions are stable, thereby optimizing both measurement precision and time efficiency
3Reliability
If continuous fidelity monitoring is implemented to detect video quality degradation, then reliability is improved, but use of energy increases due to constant computational processing
Solution Approach 1:
The patent extracts the essential monitoring function by separating continuous network metric monitoring from periodic full fidelity testing. The system continuously extracts and analyzes network performance indicators (bandwidth, error rate, latency) at low energy cost, and only performs energy-intensive fidelity tests when extracted metrics indicate potential quality issues, thus maintaining reliability while reducing overall energy consumption
Solution Approach 2:
The system uses self-service by having the network monitoring data itself trigger the fidelity testing process. When network metrics self-indicate degradation through predefined thresholds or trends, the system automatically initiates appropriate fidelity assessments without external intervention, optimizing energy usage based on actual network conditions rather than constant processing
Data Source
AI summary
A method to determine when to compare original data (such as the original image) to rendered data (such as the rendered image) for the purpose of determining the fidelity of without some of the disadvantages of the prior art is disclosed. This is done by assessing the quality of service of a network path at a given time or by assessing the conditions of the network path over time and deciding specific times at which to test.