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Proceedings Paper

Image processing requirements for computed-tomographic explosives detection
Author(s): Fredrick L. Roder; Benno G. Stebler
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Paper Abstract

The potential of x-ray computed tomography (CT) for detection and identifying explosives concealed in suitcases and packages was recognized soon after the development of the first medical scanner, and several studies in this area have been published over the past 15 years. CT images are created by quantitatively determining the x-ray mass attenuation of materials within a cross section and mapping these values within a reconstruction matrix on a pixel-by- pixel basis. It is the quantitative nature of CT images that makes them useful for explosives detection. However, even with the short image cycle times currently achievable, the time required to obtain contiguous CT images throughout every suitcase is prohibitive, and means must be developed to maximize the information which can be derived from a limited number of CT images. One means of doing this is to fuse the data obtained from CT images with the data obtained from conventional or dual-energy x-ray projection images.

Paper Details

Date Published: 1 April 1993
PDF: 9 pages
Proc. SPIE 1824, Applications of Signal and Image Processing in Explosives Detection Systems, (1 April 1993); doi: 10.1117/12.143239
Show Author Affiliations
Fredrick L. Roder, Imatron Federal Systems (United States)
Benno G. Stebler, InVision Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 1824:
Applications of Signal and Image Processing in Explosives Detection Systems
James M. Connelly; Shiu M. Cheung, Editor(s)

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