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NFFT
3.4.0alpha
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Macros | |
#define | LANDWEBER (1U<< 0) |
#define | STEEPEST_DESCENT (1U<< 1) |
#define | CGNR (1U<< 2) |
#define | CGNE (1U<< 3) |
#define | NORMS_FOR_LANDWEBER (1U<< 4) |
#define | PRECOMPUTE_WEIGHT (1U<< 5) |
#define | PRECOMPUTE_DAMP (1U<< 6) |
#define LANDWEBER (1U<< 0) |
#define STEEPEST_DESCENT (1U<< 1) |
#define CGNR (1U<< 2) |
If this flag is set, the conjugate gradient method for the normal equation of first kind is used to compute an inverse transform. Each iterate minimises the residual in the current Krylov subspace.
Definition at line 788 of file nfft3.h.
Referenced by CONCAT(), and reconstruct().
#define CGNE (1U<< 3) |
#define NORMS_FOR_LANDWEBER (1U<< 4) |
#define PRECOMPUTE_WEIGHT (1U<< 5) |
#define PRECOMPUTE_DAMP (1U<< 6) |
If this flag is set, the Fourier coefficients are damped, eg to favour fast decaying coefficients.
Definition at line 792 of file nfft3.h.
Referenced by reconstruct(), solver_loop_one_step_cgne_complex(), solver_loop_one_step_cgne_double(), solver_loop_one_step_cgnr_complex(), solver_loop_one_step_cgnr_double(), solver_loop_one_step_landweber_complex(), solver_loop_one_step_landweber_double(), solver_loop_one_step_steepest_descent_complex(), and solver_loop_one_step_steepest_descent_double().