Network Management Apparatus for Adaptive Video Bit Rate Control
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Solution Overview
Problem
Securing a sufficient communication band for video image distribution while maintaining high accuracy of recognition is challenging, especially as video image bit rate increases, making it difficult to ensure reliable network performance.
Innovation Solution
A network management apparatus and method that acquire required video image quality, calculate analysis performance, and determine a parameter for efficient video image distribution, incorporating Family-wise recognition to set a lower video image bit rate that ensures accurate recognition in at least one frame out of multiple frames, thereby reducing the communication band requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the video image bit rate is increased to maintain high accuracy of recognition, then the recognition accuracy is improved, but the communication band requirement increases making it difficult to secure sufficient bandwidth
Solution Approach 1:
The patent applies dynamics by introducing adaptive bit rate adjustment based on network conditions. The system dynamically switches between different bit rates (e.g., 1 Mbps or 2 Mbps) depending on available communication bandwidth, allowing the system to maintain recognition accuracy while adapting to varying network constraints rather than requiring a fixed high bit rate
Solution Approach 2:
The patent changes the bit rate parameter based on network conditions and recognition requirements. By adjusting the bit rate parameter dynamically and selecting appropriate frame rates (e.g., 25 fps or 50 fps), the system optimizes the balance between recognition accuracy and communication band usage, transforming a static high-bit-rate requirement into a flexible parameter that adapts to available resources
2Quantity of substance
If the video image bit rate is reduced to secure sufficient communication band, then the communication band requirement is reduced, but the recognition accuracy deteriorates
Solution Approach 1:
The patent applies partial action by transmitting only the necessary number of frames (e.g., 100 frames or 200 frames) rather than continuously transmitting all frames at high bit rate. The system selectively transmits a subset of frames that are sufficient for recognition, reducing the total data volume while maintaining adequate recognition accuracy through strategic frame selection rather than exhaustive frame transmission
Solution Approach 2:
The system dynamically adjusts the bit rate parameter based on network conditions and recognition requirements. When communication band is limited, the system switches to lower bit rates (e.g., 1 Mbps) and adjusts frame rates accordingly, allowing the system to maintain acceptable recognition accuracy while adapting to varying network constraints rather than requiring a fixed high bit rate
Data Source
AI summary
A network management apparatus (100B) according to the present disclosure includes: an acquisition unit (111) configured to acquire, in order to recognize a target object from a video image, a required quality indicating quality of the video image required by a video image distribution apparatus configured to distribute the video image; a first calculation unit (112) configured to calculate an analysis performance for analyzing the video image based on the required quality acquired by the acquisition unit (111), the analysis performance enabling the target object to be recognized; and a second calculation unit (113) configured to calculate a parameter related to the distribution of the video image based on the analysis performance calculated by the first calculation unit (112).