Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) H. Fujita and D.-Y. Tsai and T. Itoh and K. Doi and J. Morishita and K. Ueda and A. Ohtsuka,A simple method for determining the modulation transfer function in digital radiography,IEEE Transactions on Medical Imaging,0278-0062,Institute of Electrical and Electronics Engineers (IEEE),1992-03,11,1,34-39,https://cir.nii.ac.jp/crid/1364233269028906880,https://doi.org/10.1109/42.126908