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Proceedings Paper

Context-independant video monitoring of mobile objects with color/thermal sensor
Author(s): Louis St. Laurent; Donald Prevost; Xavier P. V. Maldague
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Paper Abstract

Automated video monitoring of mobile objects is a growing trend in many sectors, especially in surveillance applications. Many research groups are addressing substantial efforts to develop autonomous applications able to recognize specified events. Reliability of such a system is mainly defined by its ability to extract and to track features of interest in image sequences. Since the capacity to perform this basic task is strongly related to changes in image contrast, video monitoring units made up mono-spectral sensors offer limited performances in many situations. The best example of such a limitation is the uselessness of a visible CCD camera in low brightness scene. To overcome these shortcomings, we developed an acquisition unit including an uncooled VOx thermal camera (8-12 mm)and a High-Dynamic-Range-CMOS(R) color camera more suitable for outdoor applications. Unlike similar systems, we perform image registration at hardware level rather than at software level. Advantageous characteristics of such a design are presented in this paper. A simple framework is also proposed in order to achieve context-independent event extraction from color and thermal information.

Paper Details

Date Published: 16 December 2004
PDF: 10 pages
Proc. SPIE 5616, Optics and Photonics for Counterterrorism and Crime Fighting, (16 December 2004); doi: 10.1117/12.573773
Show Author Affiliations
Louis St. Laurent, Institut National d'Optique (Canada)
Donald Prevost, Institut National d'Optique (Canada)
Xavier P. V. Maldague, Univ. Laval (Canada)


Published in SPIE Proceedings Vol. 5616:
Optics and Photonics for Counterterrorism and Crime Fighting
Tim P. Donaldson; Colin Lewis, Editor(s)

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