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Proceedings Paper

Real-time 3D change detection of IEDs
Author(s): Mitch Wathen; Norah Link; Peter Iles; John Jinkerson; Paul Mrstik; Kresimir Kusevic; David Kovats
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Paper Abstract

Road-side bombs are a real and continuing threat to soldiers in theater. CAE USA recently developed a prototype Volume based Intelligence Surveillance Reconnaissance (VISR) sensor platform for IED detection. This vehicle-mounted, prototype sensor system uses a high data rate LiDAR (1.33 million range measurements per second) to generate a 3D mapping of roadways. The mapped data is used as a reference to generate real-time change detection on future trips on the same roadways. The prototype VISR system is briefly described. The focus of this paper is the methodology used to process the 3D LiDAR data, in real-time, to detect small changes on and near the roadway ahead of a vehicle traveling at moderate speeds with sufficient warning to stop the vehicle at a safe distance from the threat. The system relies on accurate navigation equipment to geo-reference the reference run and the change-detection run. Since it was recognized early in the project that detection of small changes could not be achieved with accurate navigation solutions alone, a scene alignment algorithm was developed to register the reference run with the change detection run prior to applying the change detection algorithm. Good success was achieved in simultaneous real time processing of scene alignment plus change detection.

Paper Details

Date Published: 26 May 2012
PDF: 10 pages
Proc. SPIE 8379, Laser Radar Technology and Applications XVII, 837908 (26 May 2012); doi: 10.1117/12.918774
Show Author Affiliations
Mitch Wathen, U. S. Army Research Labs (United States)
Norah Link, CAE Inc. (Canada)
Peter Iles, Neptec Design Group Ltd. (Canada)
John Jinkerson, CAE USA Inc. (United States)
Paul Mrstik, GeoDigital International Inc. (Canada)
Kresimir Kusevic, GeoDigital International Inc. (Canada)
David Kovats, CAE Inc. (Canada)


Published in SPIE Proceedings Vol. 8379:
Laser Radar Technology and Applications XVII
Monte D. Turner; Gary W. Kamerman, Editor(s)

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