Image-Capturing System Data Reduction via Difference Extraction
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Solution Overview
Problem
Conventional image-capturing systems face challenges in maintaining high analysis accuracy while reducing data volume and simplifying operations, particularly due to environmental changes and the complexity of setting multiple monitoring points, which can lead to erroneous movement detection and reduced reliability.
Innovation Solution
An image-capturing system that includes an image-capturing device and a control device with difference extraction, change amount extraction, and condition change units, which compare and analyze image data to adjust image acquisition conditions based on change data, thereby enhancing accuracy and reducing data volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple monitoring points are set to detect movement accurately, then detection accuracy is improved, but device complexity and operation complexity increase
Solution Approach 1:
The patent combines multiple monitoring points into a single monitoring point by integrating the functional roles of multiple points (object monitoring, environmental change detection) into one location, thereby reducing device complexity while maintaining detection accuracy through comprehensive monitoring
Solution Approach 2:
The single monitoring point is designed to perform multiple functions simultaneously: detecting object movement, detecting environmental changes (illumination, solar radiation), and providing reference data for accuracy correction, thereby eliminating the need for multiple specialized monitoring points
2Reliability
If multiple monitoring points are set to prevent erroneous detection, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent merges the functions of multiple monitoring points into one comprehensive monitoring point that handles both object monitoring and environmental reference, significantly simplifying the setup operation while maintaining reliability through integrated multi-functional monitoring
Solution Approach 2:
The single monitoring point automatically performs environmental change detection and applies corrections to movement detection results without requiring manual configuration of multiple points, making the system easier to operate while maintaining high reliability through automated accuracy management
3Measurement precision
If high resolution image data is acquired, then analysis accuracy is improved, but data volume increases
Solution Approach 1:
The patent extracts only the essential information needed for movement detection (difference data between images) rather than processing and transmitting complete high-resolution images, thereby reducing data volume while maintaining analysis accuracy through selective information extraction
Solution Approach 2:
The system performs partial image processing by calculating only the necessary difference data and change amount data required for movement detection, avoiding unnecessary processing of complete image data and thus reducing overall data volume while maintaining detection accuracy
Data Source
AI summary
To provide an image-capturing system capable of maintaining high analysis accuracy while reducing the amount of data related to image acquisition with a simple method. In order to achieve the object, the image-capturing system includes an image-capturing device configured to acquire image data of a subject, and an image-capturing control device configured to control image acquisition by the image-capturing device. The image-capturing control device includes a difference extraction means configured to extract difference data on the basis of any two image data items acquired by the image-capturing device, a change amount extraction means configured to extract change amount data on the basis of any two difference data items extracted by the difference extraction means, and a condition change means configured to change an image acquisition condition in the image-capturing device on the basis of the change amount data extracted by the change amount extraction means.