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Proceedings Paper

Simulation of quantum mottle in digital angiographic images
Author(s): Cheuk L. Chan; Barry J. Sullivan; Alan V. Sahakian; Aggelos K. Katsaggelos; Steven Swiryn; David C. Hueter; Thomas Frohlich
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Paper Abstract

A method is described for the computer simulation of quantum mottle in digital angiographic images obtained through an image intensifier (II) based system. The model corrupts a "perfect" image-one taken at high exposure levels-with Poisson distributed noise to simulate an image obtained through a lower x-ray dose. A mapping scheme is employed which effectively correlates gray level intensities at the image display to photon fluence at the front end of the II. The utility of the noise model is demonstrated by using it to simulate the effect of variable x-ray exposure conditions on an angiographic sequence. Such a sequence is valuable in the development of temporal filtering techniques for digital angiography.

Paper Details

Date Published: 1 May 1990
PDF: 7 pages
Proc. SPIE 1245, Biomedical Image Processing, (1 May 1990); doi: 10.1117/12.19545
Show Author Affiliations
Cheuk L. Chan, Northwestern Univ. (United States)
Barry J. Sullivan, Northwestern Univ. (United States)
Alan V. Sahakian, Northwestern Univ. (United States)
Aggelos K. Katsaggelos, Northwestern Univ. (United States)
Steven Swiryn, Evanston Hospital (United States)
David C. Hueter, Evanston Hospital (United States)
Thomas Frohlich, Evanston Hospital (United States)


Published in SPIE Proceedings Vol. 1245:
Biomedical Image Processing
Alan Conrad Bovik; William E. Higgins, Editor(s)

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