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Proceedings Paper

Radiographic systems evaluation: obtaining the MTF by simulation
Author(s): Homero Schiabel; Annie France Frere
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Paper Abstract

Although the transfer function method has been considered the most accurate and complete in evaluating radiological imaging systems performance, it is limited only to a few well equipped laboratories or radiological centers due to the sophisticated experimental apparatus used. Therefore, this paper proposes a new simpler way of performing this quality evaluation, using a computer simulation. This new method provides the MTF determination from a focal spot size and shape knowledge, which can be determined from a pinhole image. Simulation tests were made for an actual mammographic system and for focal spot sizes presented in a previous work by Doi, Fromes & Rossmann. The simulation results were in agreement with those obtain by the conventional method.

Paper Details

Date Published: 29 July 1993
PDF: 8 pages
Proc. SPIE 1905, Biomedical Image Processing and Biomedical Visualization, (29 July 1993); doi: 10.1117/12.148688
Show Author Affiliations
Homero Schiabel, Univ. of Sao Paulo (Brazil)
Annie France Frere, Univ. of Sao Paulo (Brazil)

Published in SPIE Proceedings Vol. 1905:
Biomedical Image Processing and Biomedical Visualization
Raj S. Acharya; Dmitry B. Goldgof, Editor(s)

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