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Proceedings Paper

Adaptive processing for enhanced target acquisition
Author(s): Scott F. Page; Moira I. Smith; Duncan Hickman; Mark Bernhardt; William Oxford; Norman Watson; F. Beath
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Paper Abstract

Conventional air-to-ground target acquisition processes treat the image stream in isolation from external data sources. This ignores information that may be available through modern mission management systems which could be fused into the detection process in order to provide enhanced performance. By way of an example relating to target detection, this paper explores the use of a-priori knowledge and other sensor information in an adaptive architecture with the aim of enhancing performance in decision making. The approach taken here is to use knowledge of target size, terrain elevation, sensor geometry, solar geometry and atmospheric conditions to characterise the expected spatial and radiometric characteristics of a target in terms of probability density functions. An important consideration in the construction of the target probability density functions are the known errors in the a-priori knowledge. Potential targets are identified in the imagery and their spatial and expected radiometric characteristics are used to compute the target likelihood. The adaptive architecture is evaluated alongside a conventional non-adaptive algorithm using synthetic imagery representative of an air-to-ground target acquisition scenario. Lastly, future enhancements to the adaptive scheme are discussed as well as strategies for managing poor quality or absent a-priori information.

Paper Details

Date Published: 4 May 2009
PDF: 12 pages
Proc. SPIE 7338, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXIII, 733807 (4 May 2009); doi: 10.1117/12.818459
Show Author Affiliations
Scott F. Page, Waterfall Solutions Ltd. (United Kingdom)
Moira I. Smith, Waterfall Solutions Ltd. (United Kingdom)
Duncan Hickman, Waterfall Solutions Ltd. (United Kingdom)
Mark Bernhardt, Waterfall Solutions Ltd. (United Kingdom)
William Oxford, Waterfall Solutions Ltd. (United Kingdom)
Norman Watson, SELEX GALILEO (United Kingdom)
F. Beath, SELEX GALILEO (United Kingdom)


Published in SPIE Proceedings Vol. 7338:
Acquisition, Tracking, Pointing, and Laser Systems Technologies XXIII
Steven L. Chodos; William E. Thompson, Editor(s)

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