Influence of imaging geometry on noise texture in quantitative in-line X-ray phase-contrast imaging
Resource
Optics Express 17 (17): 14466-14480
Journal
Optics Express
Journal Volume
17
Journal Issue
17
Pages
14466-14480
Date Issued
2009
Author(s)
Anastasio, Mark A.
Abstract
Quantitative in-line X-ray phase-contrast imaging methods seek to reconstruct separate images that depict an object's projected absorption and refractive properties. An understanding of the statistical properties of the reconstructed images can facilitate the identification of optimal imaging parameters for specific diagnostic tasks. However, the statistical properties of quantitative X-ray phase-contrast imaging remain largely unexplored. In this work, we derive analytic expressions that describe the second-order statistics of the reconstructed absorption and phase images. Concepts from statistical decision theory are applied to demonstrate how the statistical properties of images corresponding to distinct imaging geometries can influence signal detectability.
SDGs
Type
journal article