Compressive X-ray phase tomography based on the transport of intensity equation

TL;DR

This paper introduces a compressive reconstruction method for X-ray phase tomography that models the transport of intensity and X-ray transform to recover refractive index distributions in weakly attenuating objects.

Contribution

It develops a discretized operator combining the transport of intensity equation and X-ray transform for iterative reconstruction in X-ray phase tomography.

Findings

Effective reconstruction of refractive index in weakly attenuating objects

Integration of transport of intensity and X-ray transform models

Suitable for microfocus X-ray systems

Abstract

We develop and implement a compressive reconstruction method for tomographic recovery of refractive index distribution for weakly attenuating objects in a microfocus X-ray system. This is achieved through the development of a discretized operator modeling both the transport of intensity equation and X-ray transform that is suitable for iterative reconstruction techniques.