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Proceedings Paper

A robust procedure for determination of center of rotation in tomography
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Paper Abstract

Performing computed assisted tomography (CAT) requires a perfect centering of the rotation axis with the center of the detector. This requirement is sometimes hard to obtain. Thus, a post acquisition centering correction of the acquired data is mandatory. Several correction techniques can be found in the literature. However, all of them are not completely reliable when the measure is not performed in perfect experimental condition. As matter of fact, researcher use to fit the center of rotation by a post measure visual inspection of the projections. This approach is not practical at high-throughput tomography system where hundreds of samples a day can be easily measured, moreover, the visual approach does not always give the best centering. In this paper we report a new centering technique that is more robust when the quality of the acquired data is poor due to low contrast or noisy acquisition.

Paper Details

Date Published: 26 October 2004
PDF: 8 pages
Proc. SPIE 5535, Developments in X-Ray Tomography IV, (26 October 2004); doi: 10.1117/12.560440
Show Author Affiliations
Antonio Brunetti, Univ. degli Studi di Sassari (Italy)
Argonne National Lab. (United States)
INFN (Italy)
Francesco De Carlo, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 5535:
Developments in X-Ray Tomography IV
Ulrich Bonse, Editor(s)

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