Data Structures | |
struct | nnfft_plan |
Structure for a transform plan. More... | |
Functions | |
void | nnfft_init (nnfft_plan *ths_plan, int d, int N_total, int M_total, int *N) |
Creates a transform plan. | |
void | nnfft_init_guru (nnfft_plan *ths_plan, int d, int N_total, int M_total, int *N, int *N1, int m, unsigned nnfft_flags) |
Creates a transform plan. | |
void | nndft_trafo (nnfft_plan *ths_plan) |
Executes a direct NNDFT, i.e. | |
void | nndft_adjoint (nnfft_plan *ths_plan) |
Executes a direct adjoint NNDFT, i.e. | |
void | nnfft_trafo (nnfft_plan *ths_plan) |
Executes a NNFFT, i.e. | |
void | nnfft_adjoint (nnfft_plan *ths_plan) |
Executes a adjoint NNFFT, i.e. | |
void | nnfft_precompute_lin_psi (nnfft_plan *ths_plan) |
Precomputation for a transform plan. | |
void | nnfft_precompute_psi (nnfft_plan *ths_plan) |
Precomputation for a transform plan. | |
void | nnfft_precompute_full_psi (nnfft_plan *ths_plan) |
Precomputation for a transform plan. | |
void | nnfft_precompute_phi_hut (nnfft_plan *ths_plan) |
Precomputation for a transform plan. | |
void | nnfft_finalize (nnfft_plan *ths_plan) |
Destroys a plan. |
|
Executes a direct adjoint NNDFT, i.e.
computes for
|
|
Executes a direct NNDFT, i.e.
computes for
|
|
Executes a adjoint NNFFT, i.e.
computes for
|
|
Destroys a plan.
|
|
Creates a transform plan. < index over all dimensions |
|
Creates a transform plan. < index over all dimensions |
|
Precomputation for a transform plan. < index over all dimensions < index over all nodes < plain index 0<=l_L<lprod < multi index u<=l<=o < multi index 0<=lj<u+o+1 < postfix plain index < 'bandwidth' of matrix B < depends on x_j |
|
Precomputation for a transform plan. < index over all dimensions < index over all nodes < step size in [0,(m+1)/n] |
|
Precomputation for a transform plan. < index over all frequencies < index over all dimensions |
|
Precomputation for a transform plan. < index over all dimensions < index over all nodes < index u<=l<=o < index 0<=lj<u+o+1 < depends on v_j |
|
Executes a NNFFT, i.e.
computes for
|