title: Review of a simple noise simulation technique in digital radiography.
abstract: Reduction of exposure dose and improvement in image quality can be expected to result from advances in the performance of imaging detectors. A number of researchers have reported on methods for simulating reduced dose images. The simplest method provides reduced dose images by adding white Gaussian noise with a certain standard deviation to the original image. Our aim in this study was to develop and validate a system with a graphic user interface for simulating reduced dose images by a simple method. Here, we describe a technical approach with the use of a flat-panel detector system, and we validated the simulation performance in reducing the dose objectively and subjectively. In addition, the technical limitations and possible solutions to the simple method are suggested based on the validation results presented in this paper.
authors.affiliation: Department of Radiological Technology, School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa 920-0942, Japan. rie44@mhs.mp.kanazawa-u.ac.jp
authors.forename: Rie
authors.initials: R
authors.lastname: Tanaka
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Ichikawa
authors.forename: Kosuke
authors.initials: K
authors.lastname: Matsubara
authors.forename: Hiroki
authors.initials: H
authors.lastname: Kawashima
mesh_terms: D004781:Environmental Exposure / Q000032:analysis; D008962:Models, Theoretical; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000379:methods*; D015203:Reproducibility of Results