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TV-based conjugate gradient method and discrete L-curve for few-view CT reconstruction of X-ray in vivo data
High-resolution, three-dimensional (3D) imaging of soft tissues requires the solution of two inverse problems: phase retrieval and the reconstruction of the 3D image from a tomographic stack of two-dimensional (2D) projections. The number of projections per stack should be small to accommodate fast tomography of rapid processes and to constrain X-ray radiation dose to optimal levels to either increase the duration of in vivo time-lapse series at a given goal for spatial resolution and/or thedoi:10.1364/oe.23.005368 pmid:25836772 fatcat:2rig5hljm5aujjnk2e6uuvfi7e