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18 September 2001 Dual-energy x-ray image decomposition by independent component analysis
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Proceedings Volume 4549, Medical Image Acquisition and Processing; (2001)
Event: Multispectral Image Processing and Pattern Recognition, 2001, Wuhan, China
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.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yifeng Jiang, Dazong Jiang, Feng Zhang, Dengfu Zhang, and Gang Lin "Dual-energy x-ray image decomposition by independent component analysis", Proc. SPIE 4549, Medical Image Acquisition and Processing, (18 September 2001);

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