Noise modeling and variance stabilization of a computed radiography (CR) mammography system subject to fixed-pattern noise

• Published in: Physics in medicine & biology Vol. 65; no. 22; pp. 225035 - 225045
• Main Authors: Borges, Lucas R, Brochi, Marco A C, Xu, Zhongwei, Foi, Alessandro, Vieira, Marcelo A C, Azevedo-Marques, Paulo M
• Format: Journal Article
• Language: English
• Published: England IOP Publishing 24.11.2020
• Subjects: Algorithms; computed radiography; electronic noise; Humans; Mammography; Models, Theoretical; noise model; Normal Distribution; Phantoms, Imaging; quantum noise; Signal-To-Noise Ratio; structural noise
• ISSN: 0031-9155; 1361-6560; 1361-6560
• DOI: 10.1088/1361-6560/abbb74

In this work we model the noise properties of a computed radiography (CR) mammography system by adding an extra degree of freedom to a well-established noise model, and derive a variance-stabilizing transform (VST) to convert the signal-dependent noise into approximately signal-independent. The prop...