Research Article
Compressed Sensing-Based MRI Reconstruction Using Complex Double-Density Dual-Tree DWT
INPUTS: | : undersampled k-space data | : system matrix associated with the measurements | : complex double-density dual-tree wavelet operator | , : tuning constants | OPTIONAL PARAMETERS: | Tol: stopping criteria by gradient magnitude (default ) | Iter: stopping criteria by number of iterations (default 100) | , : line search parameters (defaults = 0.01, = 0.6) | OUTPUTS: | : the numerical approximation to (6) | % Initialization | ; ; ; | % Iterations | while | { | % Backtracking line-search | ; while and k < Iter) | | | | | | | + | } |
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