Joint absorption and phase retrieval in grating-based x-ray radiography

• Main Authors: Nilchian, Masih, Bostan, Emrah, Wang, Zhentian, Nilchiyan, Mohammad Reza, Stampanoni, Marco, Unser, Michael
• Format: Article
• Published: OSA - The Optical Society 2016
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/72639/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964692693&doi=10.1364%2fOE.24.007253&partnerID=40&md5=e6ac868f535c3c51c90f184c30f3480b
• Institution: Universiti Teknologi Malaysia

Given the raw absorption and differential phase-contrast images obtained from a grating-based x-ray radiography, we formulate the joint denoising of the absorption image and retrieval of the non-differential phase image as a regularized inverse problem. The choice of the regularizer is driven by the...