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Proceedings Paper

Unified imaging theory for x-ray and acoustic computerized tomography
Author(s): Pingyu Liu; Ge Wang; Arthur Boyer
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Paper Abstract

X-ray computerized tomography (CT) and acoustic CT are two main medical imaging modalities based on two intrinsically different physical phenomena. X-ray CT is based on x-ray’s attenuation when x-ray passes through medium. It has been well known that the Radon transform is the imaging theory for x-ray CT. Photoacoustic CT is a type of acoustic CT, which is based on differentiating electromagnetic energy absorption among media. In 1998 a new 3D reconstruction concept, the P-transform, was proposed to serve the imaging theory for photoacoustic CT. In this paper it was rigorously proved that both x-ray CT and photoacoustic CT are governed by a unified imaging theory. 3D data acquisition can be completed in 2p stereoangle. This new imaging theory realized, in part, the dream of all physicists, including Albert Einstein, who have long believed that our world is ultimately governed by few simple rules.

Paper Details

Date Published: 22 October 2004
PDF: 4 pages
Proc. SPIE 5562, Image Reconstruction from Incomplete Data III, (22 October 2004);
Show Author Affiliations
Pingyu Liu, Stanford Univ. (United States)
Ge Wang, Univ. of Iowa (United States)
Arthur Boyer, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 5562:
Image Reconstruction from Incomplete Data III
Philip J. Bones; Michael A. Fiddy; Rick P. Millane, Editor(s)

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