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Proceedings Paper

Dual-energy x-ray image decomposition by independent component analysis
Author(s): Yifeng Jiang; Dazong Jiang; Feng Zhang; Dengfu Zhang; Gang Lin
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Paper Abstract

The spatial distributions of bone and soft tissue in human body are separated by independent component analysis (ICA) of dual-energy x-ray images. It is because of the dual energy imaging model¡-s conformity to the ICA model that we can apply this method: (1) the absorption in body is mainly caused by photoelectric absorption and Compton scattering; (2) they take place simultaneously but are mutually independent; and (3) for monochromatic x-ray sources the total attenuation is achieved by linear combination of these two absorption. Compared with the conventional method, the proposed one needs no priori information about the accurate x-ray energy magnitude for imaging, while the results of the separation agree well with the conventional one.

Paper Details

Date Published: 18 September 2001
PDF: 6 pages
Proc. SPIE 4549, Medical Image Acquisition and Processing, (18 September 2001); doi: 10.1117/12.440253
Show Author Affiliations
Yifeng Jiang, Xi'an Jiaotong Univ. (China)
Dazong Jiang, Xi'an Jiaotong Univ. (China)
Feng Zhang, Xi'an Jiaotong Univ. (China)
Dengfu Zhang, Xi'an Jiaotong Univ. (China)
Gang Lin, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 4549:
Medical Image Acquisition and Processing
Jayaram K. Udupa; Aaron Fenster, Editor(s)

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