Interpolation method in simple computed tomography scanner

Gede A. Wiguna

doi:10.1117/12.2076910

4 March 2015 Interpolation method in simple computed tomography scanner

Gede A. Wiguna

Proceedings Volume 9302, International Conference on Experimental Mechanics 2014; 93020N (2015) https://doi.org/10.1117/12.2076910
Event: International Conference on Experimental Mechanics 2014, 2014, Singapore, Singapore

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 5^o, 10^o, and 20^o. Then each resulted sinogram was interpolated following sinusoidal pattern to make a complete full scanning sinogram as if they were sampled at 1^o. 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.

Citation Download Citation

Gede A. Wiguna "Interpolation method in simple computed tomography scanner", Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93020N (4 March 2015); https://doi.org/10.1117/12.2076910

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