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Proceedings Paper

Quality enhancement of image-intensified x-ray image
Author(s): Kenro Kuroki; Kenji Kurosawa; Naoki Saitoh; Hiroyoshi Konuma
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Paper Abstract

An x-ray image intensified cooled CCD camera (x-ray IICCCDC) with micro-focused x-ray source, is a very powerful tool for objects investigation. We can get inside images of objects non destructively and we can also get magnified images of the objects. We investigate illegal electronic circuits, forged IC chips, etc. by the x-ray IICCCDC. The data depth of each pixel of the image taken by the x-ray IICCCDC is 14 bits. The x-ray IICCCDC is a powerful tool for itself, but the raw images of that are degraded by many factors, a geometrical distortion, lack of uniformity of an x-ray window's material, blurring caused by finite size of the x- ray source, background noise by x-ray scattering, etc. Some of these degradation factors are well defined and the degradation can be restored well, but some of these degradation can not be recovered well. We analyzed the sources of degradation and applied digital image processing techniques to the images of the x-ray IICCCDC to enhance the image quality. Using these digital image processing techniques, the image quality of the x-ray IICCCDC was enhanced substantially.

Paper Details

Date Published: 19 February 1997
PDF: 7 pages
Proc. SPIE 2942, Investigative Image Processing, (19 February 1997); doi: 10.1117/12.267170
Show Author Affiliations
Kenro Kuroki, National Research Institute of Police Science (Japan)
Kenji Kurosawa, National Research Institute of Police Science (Japan)
Naoki Saitoh, National Research Institute of Police Science (Japan)
Hiroyoshi Konuma, National Research Institute of Police Science (Japan)

Published in SPIE Proceedings Vol. 2942:
Investigative Image Processing
Leonid I. Rudin; Simon K. Bramble, Editor(s)

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