Video Image Quality Control for Analysis Accuracy
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Solution Overview
Problem
Existing video image analysis techniques are susceptible to decreased accuracy due to varying image quality, particularly when images are distributed via networks, as seen in Patent Literature 1, which does not account for image quality fluctuations.
Innovation Solution
An information processing system and method that includes control and transmission means to set and maintain image quality changes of a second video image to be equal to or smaller than a threshold based on information from a first video image, ensuring stable image quality for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If video images are distributed via network with varying image quality, then transmission efficiency is improved, but analysis accuracy deteriorates
Solution Approach 1:
The system performs preliminary analysis on the first video image to determine appropriate image quality settings before distributing the second video image. This advance preparation ensures that the video image is configured with suitable quality parameters for the intended analysis task, preventing quality degradation that would occur during network transmission.
Solution Approach 2:
The system dynamically adjusts image quality parameters based on the specific analysis requirements. By changing parameters such as resolution, bit rate, or compression level according to the analysis task, the system maintains optimal image quality for analysis while adapting to network transmission constraints.
2Measurement precision
If image quality is maintained at high level, then analysis accuracy is improved, but data transmission size increases
Solution Approach 1:
Instead of uniformly maintaining high image quality across the entire video image, the system applies different quality levels to different regions or aspects of the image based on where analysis is most critical. This localized quality adjustment preserves analysis accuracy in important areas while reducing overall data transmission size.
Solution Approach 2:
The system applies image quality optimization selectively rather than uniformly. By focusing quality maintenance on specific critical regions or parameters that most impact analysis accuracy, the system achieves sufficient analysis precision without the excessive data transmission size that would result from uniformly high-quality encoding throughout the entire video image.
Data Source
AI summary
An information processing system (1) includes: control means (12) for specifying a time when a change in an image quality of a second video image is set to be equal to or smaller than a threshold based on information about a first video image to be distributed; and transmission means (13) for transmitting information for setting a change in the image quality of the second video image to be equal to or smaller than the threshold at the time specified by the control means and causing the second video image to be distributed.