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http://dx.doi.org/10.5573/ieie.2014.51.4.221

The Study of Optimal Acquisition Condition and Image Processing  

Lee, Yong-Gu (Department of Radiological Technology, Hallym Polytechnic University)
Shin, Jong-Ho (Department of Radiological Science, Yonsei University)
Seo, Kyoung-Eun (Department of Radiological Science, Yonsei University)
Choi, Yoo-Lee (Department of Radiological Science, Yonsei University)
Lee, Soo-Hyeon (Department of Radiological Science, Yonsei University)
Lee, Young-Jin (Department of Radiological Science, Yonsei University)
Kim, Hee-Joung (Department of Radiological Science, Yonsei University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.4, 2014 , pp. 221-226 More about this Journal
Abstract
In this paper, we achieved the study which determined the excellent diagnostic condition and searched the exposure condition with the minimum radiation exposure level having the equal diagnostic ability. To accomplish these study, chest phantom images with lesions and without ones were evaluated at various exposure conditions. With respect to the phantom with lesions and without ones, we obtained the chest PA imaging applied by photographing parts of DR apparatus and the images processed as histogram equalization and edge enhancement method. The images were acquired at the exposure conditions of 2.0, 2.5, 3.2, 4.0 and 5.0mAs. The morphological analysis was performed by ROC curves using the images obtained at each exposure condition. The exposure conditions with the most excellent diagnostic ability and with the equal diagnostic capability having the minimum radiation exposure level were determined by means of sensitivity, specificity and accuracy.
Keywords
ROC curve; image processing; histogram equalization; edge enhancement;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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