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Proceedings Paper

Evaluating the radiologic images quality by simulation of objects sharpness
Author(s): Henrique J. Q. de Oliveira; Annie France Frere; Homero Schiabel; Paulo M. Azevedo Marques; Marcio A. Marques; Aledir S. Pereira
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Paper Abstract

This work proposes a new technique which allows the evaluation of the sharpness of radiologic images by a computer simulation. This simulation provides the image from objects placed at any field position so that the radiologist can determine previously the image sharpness to be obtained in actual exams. It also provides previous knowledge if the system will be able to image a particular detail. The x-ray source is simulated from its representation by the point spread function and it is plotted in a matrix in the image plane. The object is also calculated and plotted in an object matrix. The resultant image matrix is calculated from these two others. The validity of the simulation was verified by comparing the simulated images with the actual images obtained form single phantom exposures.

Paper Details

Date Published: 14 November 1996
PDF: 10 pages
Proc. SPIE 2847, Applications of Digital Image Processing XIX, (14 November 1996); doi: 10.1117/12.258276
Show Author Affiliations
Henrique J. Q. de Oliveira, Univ. de Sao Paulo (Brazil)
Annie France Frere, Univ. de Sao Paulo (Brazil)
Homero Schiabel, Univ. de Sao Paulo (Brazil)
Paulo M. Azevedo Marques, Univ. de Sao Paulo (Brazil)
Marcio A. Marques, Univ. de Sao Paulo (Brazil)
Aledir S. Pereira, Univ. de Sao Paulo (Brazil)


Published in SPIE Proceedings Vol. 2847:
Applications of Digital Image Processing XIX
Andrew G. Tescher, Editor(s)

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