Overview "Algorithm" (507 entries)

• ➔ 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 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
• ➔ Fourier reconstruction adapted to diffraction tomography and MRI via their respective Fourier data acquisition models
• ➔ Fourier-domain gridding method with optimally chosen convolution kernel and density compensation for nonuniform k-space samples
• ➔ Francis QR Algorithm / QR Algorithm
• ➔ Frank-wolfe / conditional gradient projection-free first-order method via linearization and convex combinations
• ➔ Frequency-Limited Balanced Truncation / Frequency Interval Balanced Truncation
• ➔ Frequency-Weighted Balanced Truncation
• ➔ Frequency-Weighted Singular Perturbation Approximation
• ➔ Frequency-Weigthed Hankel Norm Approximation