Figure 2
From: Enhanced hyperspectral tomography for bioimaging by spatiospectral reconstruction
Comparison of reconstruction algorithms. (a) Transverse and frontal slices, showing reconstructions for FDK of sample Scan A (left column), followed by Scan B reconstructions with FDK (middle column), and TV-TGV (right column). All reconstructed slices are shown for a single energy channel (42.27 keV-channel width 1.2 keV). Dashed lines indicate the positions from which spatial profiles were measured for each reconstruction. White arrows mark examples of streak artefacts due to photon starvation. ROIs in the ZnO phase (red-S) and the Al phase (white-Bg) are highlighted for use in CNR calculations. (b) Spatial profile across two powder phases for the same energy channel. (c) Absorption spectra for ROI 1 within the cerium powder region [blue square in (a)].
