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Proceedings Paper

Development of 3D x-ray systems for airport security applications
Author(s): J. Paul Owain Evans; Max Robinson; D. Lacey; N. C. Murray
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Paper Abstract

X-ray images by their very nature are difficult to interpret. For most security applications these images have been generated by using Linear Array type imaging sensors, and presented on standard video monitors. A major problem for the observer is the lack of three dimensional information present. It must be remembered that the images are essentially shadows which have been projected onto a plane by transmitted radiation. Therefore, the cues to depth which we say associate with a normal photograph (i.e. produced by reflected light), such as, occlusion and to some extent linear perspective, are missing. The loss of depth cues can, and does, cause serious ambiguities to arise in the interpretation of complex x-ray images.

Paper Details

Date Published: 1 April 1993
PDF: 12 pages
Proc. SPIE 1824, Applications of Signal and Image Processing in Explosives Detection Systems, (1 April 1993); doi: 10.1117/12.142896
Show Author Affiliations
J. Paul Owain Evans, Nottingham Polytechnic (United Kingdom)
Max Robinson, Nottingham Polytechnic (United Kingdom)
D. Lacey, Police Scientific Development Branch (United Kingdom)
N. C. Murray, Police Scientific Development Branch (United Kingdom)


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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