In this paper, we study a new type of high order interior problems characterized by high
order differential phase shift measurement. This problem is encountered in local x-ray phase …

The reconstruction problem in in-line X-ray Phase-Contrast Tomography is usually
approached by solving two independent linearized sub-problems: phase retrieval and …

Differential phase-contrast interior tomography allows reconstruction of a refractive index
distribution over a region of interest (ROI) for visualization and analysis of structures inside a …

We investigate an algorithm for boundary-enhanced image reconstruction from limited-angle
projection data in X-ray phase-contrast tomography. The algorithm exploits the fact that the …

Differential phase contrast computed tomography (DPC-CT) is an x-ray imaging method that
uses the wave properties of imaging photons as the contrast mechanism. It has been …

Like many other advanced imaging methods, x-ray phase contrast imaging and tomography
require mathematical inversion of the observed data to obtain real-space information. While …

We present a fast algorithm for fully 3D regularized X-ray tomography reconstruction for both
traditional and differential phase contrast measurements. In many applications, it is critical to …

Our contribution in this paper is two fold. First, we propose a novel discretization of the
forward model for differential phase-contrast imaging that uses B-spline basis functions. The …

Phase contrast tomography is a high sensitivity medical imaging technique. Several
regularization methods have been used in the literature to obtain stable solutions for the …

Phase contrast imaging has been of growing interest in the biomedical field, since it
provides an enhanced contrast compared to attenuation-based imaging. Actually, the phase …