Open AccessInfluence of imaging geometry on noise texture in quantitative in-line X-ray phase-contrast imaging
Author(s) -
ChengYing Chou,
Mark A. Anastasio
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.014466
Subject(s) - optics , phase contrast imaging , contrast (vision) , phase (matter) , x ray phase contrast imaging , line (geometry) , artificial intelligence , computer science , physics , computer vision , geometry , mathematics , phase contrast microscopy , quantum mechanics
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.