Theoretical Analysis of Radiographic Images by Nonstationary Poisson Processes
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概要
- 論文の詳細を見る
This paper deals with the noise analysis of radiographic images obtained in the usual fluorescent screen-film system. The theory of nonstationary Poisson processes is applied to the analysis of the radiographic images containing the object information. The ensemble averages, the autocorrelation functions, and the Wiener spectrum densities of the light-energy distribution at the fluorescent screen and of the film optical-density distribtution are obtained. The detection characteristics of the system are evaluated theoretically. Numerical examples of the one-dimensional image are shown and the results are compared with those obtained under the assumption that the object image is related to the background noise by the additive process.
- 社団法人応用物理学会の論文
- 1980-12-05
著者
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Yamada Isao
Course Of Radiological Technology Gifu College Of Medical Technology
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Yamada Isao
Course Of Radiological Technology International College Of Bio-mectical Technology
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Uchida Suguru
Department Of Electrical Engineering Faculty Of Engineering Gifu University
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Tanaka Kazuo
Department Of Digestive Disease Information And Research Kurume University School Of Medicine
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Tanaka Kazuo
Department Of Electrical Engineering Faculty Of Engineering Gifu University
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Tanaka Kazuo
Department Of Biology Faculty Of Science Okayama University
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