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Python implementation of Grouped Transforms

Project description

pyGroupedTransforms

Fast Grouped Transformations as introduced in Bartel, Potts, Schmischke, 2021 .

pyGroupedTransforms provides the following fast algorithms: nonequispaced fast transformation with exponential functions for grouped index sets based on the NFFT (non-equispaced fast Fourier transform) nonequispaced fast transformation with cosine functions for grouped index sets based on the NFCT (non-equispaced fast cosine transform)

Getting started

The pyGroupedTransforms package can be installed via pip:

pip install pyGroupedTransforms

Read the documentation for specific usage information.

Requirements

  • Python 3.8 or greater
  • pyNFFT3 0.2.2 or greater
  • NumPy 2.0.0 or greater
  • SciPy 1.16.0 or greater

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