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Objective and Subjective Image Quality Measures of Medical Screen-film Systems

Wan Muhamad Saridan Wan Hassan, and Yusof Munajat, and Shamsul Sahibuddin, (2004) Objective and Subjective Image Quality Measures of Medical Screen-film Systems. Jurnal Fizik Malaysia, 25 (1 & 2). pp. 15-18. ISSN 0128-0333

Full text not available from this repository.

Affiliations

Universiti Teknologi Malaysia. Faculty of Science. Dept. of Physics
Universiti Teknologi Malaysia. Faculty of Computer Science and Information System. Dept. of Information System.and Computer Engineering

Abstract

Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the link between the two measures. For the objective measure, uniformly exposed radiographs and radiographs of bar pattern test object were used to determine the NEQ. For the subjective measure, detection of simulated lesions in posteroanterior anthropomorphic chest radiographs by an observer was analysed by the ROC methodology. Both measures show that a low frequency signal shows better on Lanex Regular/T Mat L, whilst a high frequency signal shows better on Lanex Regular/T Mat G.

Item Type:Journal
Keywords:Image quality
Subjects:Q Science, Computer Science
ID Code:2794

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