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Proceedings Paper

Implementing advanced image processing technology in sensor systems for security and surveillance
Author(s): Tom Riley; Mark Bernhardt; Catherine Cowell; Duncan Hickman; Moira Smith
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Paper Abstract

The range and scope of electro-optical (EO) sensor systems within security and surveillance (S&S) is growing, and this places a corresponding demand on the image processing functionality required to meet end users' requirements. Increasingly, these requirements include the ability to monitor wide areas with multiple affordable cameras, and for good quality imagery to be available 24-hours a day. This paper presents the results from some real-time systems which offer this capability, and focuses on a number of the image processing techniques used to deliver a high-quality, wide-angle, day/night capability. These include the production of a seamless image mosaic from multiple sensors, the removal of artefacts from scenes, enhancements to take account of changing environmental conditions, and a means of allowing the system to automatically focus on an area of interest highlighted by an operator. In addition, the cost of some high-performance S&S systems may be reduced by omitting physical calibration elements and performing sensor calibration using scene-derived data instead, and so a method for achieving this is also reported. The paper considers both the theoretical aspects of the algorithms presented and the issues involved in real-time implementation for S&S applications.

Paper Details

Date Published: 8 October 2007
PDF: 12 pages
Proc. SPIE 6741, Optics and Photonics for Counterterrorism and Crime Fighting III, 67410W (8 October 2007); doi: 10.1117/12.741855
Show Author Affiliations
Tom Riley, Waterfall Solutions Ltd. (United Kingdom)
Mark Bernhardt, Waterfall Solutions Ltd. (United Kingdom)
Catherine Cowell, Waterfall Solutions Ltd. (United Kingdom)
Duncan Hickman, Waterfall Solutions Ltd. (United Kingdom)
Moira Smith, Waterfall Solutions Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 6741:
Optics and Photonics for Counterterrorism and Crime Fighting III
Colin Lewis, Editor(s)

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