Oscillating Camera Surveillance for Blind Spot Detection
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Solution Overview
Problem
Conventional surveillance systems struggle to accurately detect abnormal behaviors, particularly in blind spots where the imaging range of cameras is incomplete or oscillating, making it difficult to determine if a person is performing illegal dumping or placing a suspicious object.
Innovation Solution
An information processing program and device that analyze video images from multiple cameras to identify interactions between objects and persons, determine if an object is outside the camera's imaging range, and issue alerts based on these determinations, using scene graphs and attention maps to enhance the accuracy of abnormal behavior detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional surveillance systems use fixed camera imaging ranges, then the system structure is simple, but blind spots are created where abnormal behaviors cannot be detected
Solution Approach 1:
The patent applies the dynamics principle by using an oscillating camera that changes its imaging range over time. The camera oscillates between multiple imaging ranges (first imaging range, second imaging range, etc.) to cover areas that would otherwise be blind spots. This dynamic adjustment of the imaging range allows the system to detect abnormal behaviors in previously undetectable areas while maintaining a relatively simple fixed camera structure.
2Reliability
If multiple cameras are deployed to eliminate blind spots, then detection coverage is improved, but device complexity increases
Solution Approach 1:
Instead of deploying multiple static cameras, the patent uses a single camera that dynamically oscillates between multiple imaging ranges. This approach achieves the detection coverage of multiple cameras while avoiding the complexity of coordinating and integrating multiple camera systems. The oscillating camera effectively covers both the first and second imaging ranges sequentially, eliminating blind spots without requiring additional camera devices.
3Reliability
If the camera oscillates to cover blind spots, then detection coverage is improved, but the imaging range becomes unstable
Solution Approach 1:
The patent applies periodic action by implementing a cyclic oscillation pattern where the camera alternates between the first imaging range and the second imaging range at predetermined time intervals. This periodic switching ensures that both imaging ranges are covered systematically, and the cycle repeats to maintain continuous monitoring. The regular periodic action provides stability to the oscillating system while achieving comprehensive detection coverage.
Data Source
AI summary
A non-transitory computer-readable recording medium storing an information processing program for causing a computer to execute processing including: acquiring a video image captured by one or more camera devices; specifying, by analyzing the acquired video image, a relation that identifies an interaction between an object and a person included in the video image; determining, based on the specified relation, whether a first object is placed outside an imaging range of the camera device; and issuing an alert, based on a determination result obtained by the determining of whether the first object is placed outside the imaging range.