Overview "Algorithm" (568 entries)

• ➔ FBP / Filtered Backprojection
• ➔ FDK: Feldkamp-Davis-Kress approximate cone-beam filtered backprojection for circular source orbits
• ➔ FEAST — Contour-integral spectral projector eigensolver
• ➔ Filtered backprojection adapted to parallel interlaced scanning sequences with appropriate view-ordering, preweighting, and filtering
• ➔ Filtered backprojection algorithms for the 3D ray transform under Orlov sufficiency condition (complete great-circle coverage)
• ➔ Filtered backprojection for linear fan-beam geometry with flat detector, including distance-dependent weighting and ramp filtering along detector coordinate
• ➔ Filtered backprojection for standard 2D fan-beam scanning (equiangular fan geometry) using redundancy weighting and fan-to-parallel rebinning when convenient
• ➔ Filtered backprojection for the attenuated Radon transform (AtRT) with known attenuation map
• ➔ Filtered backprojection in 2D with standard parallel-beam scanning geometry using Ram-Lak-type ramp filtering followed by continuous-angle backprojection
• ➔ Filtered backprojection tailored to the exponential Radon transform (ERT) with geometry-aware exponential preweighting
• ➔ Finite Elements
• ➔ First-order Born approximation imaging and filtered backpropagation for weak scattering reconstructions
• ➔ first-order optimization methods relying on function values and gradients such as gradient descent, accelerated gradient, and proximal gradient
• ➔ fista accelerated proximal gradient with O(1/k^2) convergence for convex objectives
• ➔ Forward Euler method / Explicit Euler's method / 1-stage, 1st order explicit Runge-Kutta method