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Image reconstruction with diffraction tomography using different inverse Radon transform algorithms

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3 Author(s)
Yazgan, B. ; Dept. of Electron. & Commun. Eng., Istanbul Tech. Univ., Turkey ; Paker, S. ; Kartal, M.

The penetration of microwaves in various materials gives active microwave imaging a large potential for some applications in medical imaging. This fairly recent imaging technique is aimed at obtaining some information about the physical properties of an object which is exposed to low power incident microwave radiation. Measured external scattered field data is used for the imaging purpose. In this computer simulation work, electromagnetic far field scattered data of a dielectric cylinder having infinite length are used for reconstruction under Born approximation. Using a series of integral transform, the three fold Radon transform integral is reduced into one fold. Having found the Radon transform of the object function, inverse Radon transform algorithms are used to reconstruct it. These three different inverse Radon transform methods are direct inverse Radon transform, convolution back projection and filter back projection. The result of the computer simulation algorithms of different methods are presented

Published in:

Biomedical Engineering Days, 1992., Proceedings of the 1992 International

Date of Conference:

18-20 Aug 1992