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.

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

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