Video Transmission Using Quality Metrics
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Solution Overview
Problem
Conventional video distribution systems face challenges in maintaining high-quality video streaming due to bandwidth limitations, particularly when multiple users request high-resolution or high-frame-rate content, leading to potential interruptions or buffering issues.
Innovation Solution
The system employs video quality metrics to determine whether to drop frames in a video stream, specifically using size ratios, average frame sizes, and quality metrics to allocate bandwidth efficiently, allowing for scalable video transmission and minimizing interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bandwidth is increased to maintain high quality video streams, then video quality is improved, but network infrastructure complexity and cost increase
Solution Approach 1:
The patent implements dynamic bandwidth allocation by monitoring network conditions and adjusting the bitrate of video streams in real-time. The system transitions from static high-bitrate transmission to adaptive transmission that dynamically adjusts quality parameters based on available bandwidth, resolving the contradiction between maintaining video quality and avoiding network infrastructure upgrades.
2Loss of energy
If bandwidth is reduced to lower transmission costs, then network cost is reduced, but video streaming reliability deteriorates causing pauses and skips
Solution Approach 1:
The patent changes the parameter of video bitrate dynamically based on network conditions. By adjusting the bitrate parameter in response to bandwidth availability, the system maintains video streaming reliability at acceptable bitrates without requiring excessive bandwidth, thus reducing transmission costs while preventing playback interruptions.
Solution Approach 2:
The system implements feedback mechanisms that monitor network bandwidth conditions and use this information to adjust video transmission parameters. This closed-loop control ensures that video streaming maintains reliability by adapting to actual network capacity, preventing pauses and skips while optimizing bandwidth usage.
3Reliability
If high resolution and frame rate are used, then video quality is improved, but bandwidth requirement increases
Solution Approach 1:
The patent dynamically adjusts resolution and frame rate parameters based on available bandwidth. Instead of transmitting high-resolution high-frame-rate video continuously, the system adapts these parameters in real-time according to network conditions, maintaining acceptable video quality while significantly reducing bandwidth requirements during constrained periods.
Data Source
AI summary
Video traffic transmission using video quality metrics may be provided. A video stream comprising a plurality of frames may be received. For each frame, a determination may be made whether or not to drop the frame rather than saving and/or transmitting it to an end user, thereby conserving network bandwidth. This determination may be made on the basis of a threshold metric, such as a size ratio between frames, an average frame size, an average quality metric.