Evaluation of System Performance and Image Quality of Skeletal Radiographs by Information Spectra

Abstract

Image quality of fine-detail skeletal radiographs, and therefore performance of the radiographic systems, are successfully evaluated by the information spectra. Non-screen and screen-film systems, as well as optical and radiographic magnification systems, are compared. The order of information spectral values at the important frequency range for each object coincides with the order of image qualities evaluated by the rating method.