title: Direct quantitative tomographic reconstruction for weakly absorbing homogeneous phase objects.
abstract: We examine a direct filtered back projection approach that is suitable for the reconstruction of weakly absorbing homogeneous phase objects. Like recent similar approaches this method needs only one intensity image in each projection without the requirement for an intermediate step of phase retrieval. We tested the method using simulation and experimental results. Simulation results show good quantitative reconstruction which includes the correct refractive index value and distribution of the sample. However, experimental result still indicates the presence of artifacts.
authors.affiliation: Department of Physics, LaTrobe University, Victoria 3086, Australia.
authors.forename: B D
authors.initials: BD
authors.lastname: Arhatari
authors.forename: F
authors.initials: F
authors.lastname: De Carlo
authors.forename: A G
authors.initials: AG
authors.lastname: Peele
mesh_terms: D000465:Algorithms; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D041622:Tomography, Optical / Q000379:methods*