Encoder Adjustment via Transport Data Feedback
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Solution Overview
Problem
Existing data transmission technologies face challenges in maintaining reliable, high-quality video stream transmission over wireless networks, particularly for mobile transmitters, due to fluctuations in bandwidth, interference, and network disruptions, which can result in poor video and audio quality.
Innovation Solution
A system and method that dynamically adjusts encoding parameters, such as frame rate and encoding rate, based on real-time feedback from the network and video quality metrics like SSIM, PSNR, and MSE, to ensure continuous and high-quality video transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite or microwave fixed link is used for video transmission, then reliability and bandwidth are improved, but mobility and cost are worsened
Solution Approach 1:
The system dynamically adjusts encoding parameters (bitrate, resolution, frame rate) in real-time based on network conditions and mobility state. The encoder controller monitors transport data and modifies encoding settings to adapt to changing transmission environments, enabling reliable video transmission across both fixed and mobile platforms without requiring dedicated fixed infrastructure.
2Adaptability or versatility
If cellular networks are used for mobile transmission, then mobility and coverage are improved, but bandwidth and transmission quality are worsened
Solution Approach 1:
The system changes encoding parameters dynamically based on available bandwidth and network conditions. When bandwidth is limited, the encoder reduces bitrate, resolution, or frame rate to maintain transmission quality. This allows the system to operate effectively across cellular networks with varying bandwidth availability while maintaining acceptable video quality.
Solution Approach 2:
The system implements feedback loops where transport data from the network is monitored and used to adjust encoding parameters in real-time. This closed-loop control enables the encoder to respond to bandwidth fluctuations, packet loss, and network congestion, optimizing transmission quality for mobile cellular environments.
3Manufacturing precision
If encoding rate is increased to maintain video quality, then video quality is improved, but bandwidth consumption and transmission reliability are worsened
Solution Approach 1:
The system dynamically adjusts the encoding rate based on real-time network conditions and transport data. Rather than using a fixed high encoding rate, the encoder controller continuously adapts the bitrate to match available bandwidth and network reliability, maintaining acceptable video quality while ensuring reliable transmission under varying conditions.
Data Source
AI summary
A system and method for transmission of a video stream are provided. The system may include: an encoder adapted to generate a video stream comprising a plurality of encoded frames, encoded according to at least one encoding parameter; a comparator in communication with the encoder, the comparator adapted to compare encoded frames of the plurality of encoded frames with input frames to determine a fitness metric reflective of visual quality of the encoded frames; and a controller in communication with the comparator, the controller adapted to adjust the at least one encoding parameter based on the fitness metric.