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Proceedings Paper

Interpolation method in simple computed tomography scanner
Author(s): Gede A. Wiguna
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Paper Abstract

A method for sinogram data interpolation based on a sinusoidal pattern in computed tomography has been developed. Sampled sinograms were acquired based on angular interval scanning of 5o, 10o, and 20o. Then each resulted sinogram was interpolated following sinusoidal pattern to make a complete full scanning sinogram as if they were sampled at 1o. After that, a formal summation convolved filtered back projection was applied to each sinogram to yield a crosssectional image. This method was successfully interpolated limited number of projections data to obtained complete sinogram. It works for simple and homogenous object. However, for high variation of physical properties, e.g. linear attenuation coefficient values, this method needs more consideration on interpolation strategies to produce good image.

Paper Details

Date Published: 4 March 2015
PDF: 5 pages
Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93020N (4 March 2015); doi: 10.1117/12.2076910
Show Author Affiliations
Gede A. Wiguna, Univ. Gadjah Mada (Indonesia)

Published in SPIE Proceedings Vol. 9302:
International Conference on Experimental Mechanics 2014
Chenggen Quan; Kemao Qian; Anand Asundi; Fook Siong Chau, Editor(s)

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