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[ 源代码： nfft ]
软件包：libnfft3-double4（3.5.3-5）
library for computing non-uniform Fourier transforms (double precision)
NFFT3 is a software library written in C for computing nonequispaced fast Fourier and related transformations. In detail, NFFT3 implements:
1) The nonequispaced fast Fourier transform (NFFT)
- the forward transform (NFFT) - the adjoint transform (adjoint NFFT)
2) Generalisations of the NFFT
- to arbitrary knots in time and frequency domain (NNFFT) - to the sphere S^2 (NFSFT) - to the hyperbolic cross (NSFFT) - to real-valued data, i.e. (co)sine transforms, (NFCT, NFST) - to the rotation group (NFSOFT)
3) Generalised inverses based on iterative methods, e.g. CGNR, CGNE
4) Applications in
- medical imaging
(i) magnetic resonance imaging
(ii) computerised tomography
- summation schemes
(i) fast Gauss transform (FGT)
(ii) singular kernels
(iii) zonal kernels
- polar FFT, discrete Radon transform, ridgelet transform
This package provides the shared library compiled with double precision.
其他与 libnfft3-double4 有关的软件包
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- dep: libc6 (>= 2.29)
- GNU C 语言运行库：共享库
同时作为一个虚包由这些包填实： libc6-udeb
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- dep: libfftw3-double3 (>= 3.3.10)
- Library for computing Fast Fourier Transforms - Double precision
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- dep: libgomp1 (>= 6)
- GCC OpenMP（GOMP）支持库