Dual-energy x-ray image decomposition by independent component analysis

Yifeng Jiang; Dazong Jiang; Feng Zhang; Dengfu Zhang; Gang Lin

doi:10.1117/12.440253

18 September 2001 Dual-energy x-ray image decomposition by independent component analysis

Yifeng Jiang, Dazong Jiang, Feng Zhang, Dengfu Zhang, Gang Lin

Proceedings Volume 4549, Medical Image Acquisition and Processing; (2001) https://doi.org/10.1117/12.440253
Event: Multispectral Image Processing and Pattern Recognition, 2001, Wuhan, China

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.

Citation Download Citation

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); https://doi.org/10.1117/12.440253

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