DocumentCode
3675927
Title
Evaluation method for modulation transfer function determination of digital image detector
Author
Chien-Hau Chu;Yen-Chun Chen
Author_Institution
Health Physics Division, Institute of Nuclear Energy Research, P.O. Box 3-10, Longtan 325, Taiwan (R.O.C.)
fYear
2015
Firstpage
233
Lastpage
234
Abstract
This study aimed to establish technology methods to evaluate MTF (modulation transfer function) for digital image system recommended by IEC 62220-1 and the use of a slit. The results showed that the difference was small between the knife edge and slit methods in the image analysis. However, the knife-edge method based on the slit technology is simple, easy to operate, and widely used. This method is used as a fundamental of the next research which calculates noise power spectrum (noise power spectra, NPS), and quantum efficiency (detective quantum efficiency, DQE).
Keywords
"Modulation","Transfer functions","Image edge detection","Digital images","Radiography","Image quality","Measurement uncertainty"
Publisher
ieee
Conference_Titel
RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2015 IEEE MTT-S 2015 International Microwave Workshop Series on
Type
conf
DOI
10.1109/IMWS-BIO.2015.7303862
Filename
7303862
Link To Document