Parallel IP Video Transmission for High-Frame-Rate Streams
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Solution Overview
Problem
Conventional video transmission devices face challenges in mounting complexity and increased waiting delay times when processing high frame rate video data, requiring N times faster processing and doubling bandwidth for seamless protection.
Innovation Solution
The solution involves parallelizing transmission and reception units to process video data with a standard frame rate by phase-dividing high frame rate data, adding offsets to RTP time stamps, and controlling seamless protection based on priority and network quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If video data with high frame rate is processed by a single transmission unit, then processing speed must be N times faster, but device complexity and mounting difficulty increase significantly
Solution Approach 1:
The patent divides high frame rate video data (e.g., 120 FPS) into multiple pieces of video data with standard frame rates (e.g., 60 FPS each) and processes them in parallel using multiple transmission units. This segmentation allows each unit to operate at standard speeds while collectively handling the high frame rate data, avoiding the need for a single unit to process at N times faster speed.
2Loss of time
If video data with high frame rate is transmitted as a single IP flow, then bandwidth utilization is simplified, but waiting delay time increases
Solution Approach 1:
The patent transmits divided video data pieces through multiple synchronized IP flows simultaneously rather than as a single sequential stream. This parallel transmission eliminates waiting delay times between frames by keeping all transmission units and network paths actively engaged, improving overall transmission efficiency while maintaining synchronized delivery.
3Reliability
If seamless protection is implemented for high frame rate video data, then reliability is improved, but bandwidth consumption doubles
Solution Approach 1:
The patent applies seamless protection to individual pieces of divided video data separately rather than duplicating the entire high frame rate stream. Each piece is protected independently, allowing bandwidth-efficient protection where only the necessary redundant copies of each divided segment are transmitted, rather than doubling the total bandwidth requirement.
Data Source
AI summary
A video transmission device 11 includes a plurality of transmission units 112 that each convert into IP packets in parallel each video data with a low frame rate obtained by dividing video data with a high frame rate through allocation in units of video frames in temporally preceding order and transmit the IP packets.