Image Correlation for Improvised Explosive Device Detection
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Solution Overview
Problem
Existing systems for detecting improvised explosive devices on vehicles face challenges such as high latency, limited detection range, and regulatory issues with the use of hazardous radiation, making them unsuitable for real-time detection on moving vehicles.
Innovation Solution
A method and system utilizing image correlation by continuously capturing and comparing current images with pre-recorded images from a database, allowing for real-time detection of changes on a path without emitting hazardous radiation, using a camera and image processing device mounted on a vehicle to identify alterations indicative of explosive devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If destructive systems based on hazardous radiation (X-rays or neutron rays) are used for detecting explosive devices, then detection capability is improved, but regulatory constraints and safety issues worsen
Solution Approach 1:
The patent replaces hazardous radiation-based detection systems (X-rays, neutron rays) with an optical image correlation system using cameras and image processing. This substitution eliminates the use of harmful radiation while maintaining detection capability through passive optical means, resolving the contradiction between detection effectiveness and regulatory/safety constraints
Solution Approach 2:
The patent converts the limitation of passive optical detection (inability to penetrate concealed objects) into an advantage by using image correlation technology that detects changes and anomalies in visual data. Instead of actively probing with radiation, the system passively observes and correlates images to identify explosive devices, turning the passive nature into a regulatory advantage while maintaining detection effectiveness
2Speed
If real-time image processing is implemented on a moving vehicle, then detection speed is improved, but computational requirements and system complexity worsen
Solution Approach 1:
The patent pre-stores reference images of the path in a database before the vehicle reaches them. When the vehicle is moving, the system only needs to capture current images and compare them against the pre-stored references, significantly reducing real-time computational requirements. This preliminary preparation of reference data enables fast real-time detection without requiring complex on-board processing power
Solution Approach 2:
The patent creates a digital copy of the path environment by storing reference images in a database. These copied images serve as templates for comparison with current images, allowing the system to detect changes without performing complex real-time analysis of the entire scene. The copying approach simplifies real-time processing by replacing it with efficient image matching operations
3Length of stationary object
If the detection range is extended beyond a few meters, then coverage area is improved, but image correlation accuracy worsens
Solution Approach 1:
The patent extends detection beyond the traditional few-meter range by using image correlation that can identify patterns and changes across larger distances. The system correlates features across multiple images and uses pattern recognition to detect explosive devices at extended ranges, effectively adding a temporal and spatial correlation dimension that maintains accuracy despite increased distance
Data Source
AI summary
The present disclosure relates to method and system for detecting improvised explosive devices or the like. According to the present disclosure, the method is of the image-correlation type and involves continuously delivering current images representative of said path followed by a vehicle, in replacing some of said current images with pre-recorded earlier images taken at the same point, and in displaying said current images and said replacement earlier images in succession in order to detect said explosive devices.