title: [Quality assessment of X-ray images using modulation transfer function fractal dimension].
abstract: Objective evaluation, e.g., using the modulation transfer function (MTF) or the noise power spectrum (NPS) of an X-ray imaging system may not correctly correspond to the subject's evaluation, e.g., when using the receiver operating characteristic (ROC). Moreover, it is difficult to measure MTF or NPS from clinical images. We therefore applied MTF fractal dimension to an X-ray imaging system. The MTF fractal dimension includes the frequency properties of the human eye in addition to quantitative complexity. In this study, we demonstrated a relationship between basic image quality and MTF fractal dimension using simulated and actual X-ray images.
authors.affiliation: Graduate School of Health Sciences, Niigata University.
authors.forename: Shun
authors.initials: S
authors.lastname: Endo
authors.forename: Yongbum
authors.initials: Y
authors.lastname: Lee
authors.forename: Du-Yih
authors.initials: DY
authors.lastname: Tsai
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hara
mesh_terms: D016477:Artifacts; D003198:Computer Simulation; D017709:Fractals; D006801:Humans; D012372:ROC Curve; D011856:Radiographic Image Enhancement / Q000379:methods*; D011859:Radiography; D059629:Signal-To-Noise Ratio; D014796:Visual Perception / Q000502:physiology