Evaluating the radiologic images quality by simulation of objects sharpness

Henrique J. Q. de Oliveira; Annie France Frere; Homero Schiabel; Paulo M. Azevedo Marques; Marcio A. Marques; Aledir S. Pereira

doi:10.1117/12.258276

14 November 1996 Evaluating the radiologic images quality by simulation of objects sharpness

Henrique J. Q. de Oliveira, Annie France Frere, Homero Schiabel, Paulo M. Azevedo Marques, Marcio A. Marques, Aledir S. Pereira

Author Affiliations +

Proceedings Volume 2847, Applications of Digital Image Processing XIX; (1996) https://doi.org/10.1117/12.258276
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

Henrique J. Q. de Oliveira, Annie France Frere, Homero Schiabel, Paulo M. Azevedo Marques, Marcio A. Marques, and Aledir S. Pereira "Evaluating the radiologic images quality by simulation of objects sharpness", Proc. SPIE 2847, Applications of Digital Image Processing XIX, (14 November 1996); https://doi.org/10.1117/12.258276

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