tfmri.sampling

k-space sampling operations.

Classes

Functions

density_grid

Returns a density grid.

estimate_density

Estimate the density of an arbitrary set of points.

estimate_radial_density

Estimate the sampling density of a radial k-space trajectory.

expand_density

Expands a density tensor.

expand_trajectory

Expands a trajectory tensor.

flatten_density

Flatten a density tensor.

flatten_trajectory

Flatten a trajectory tensor.

radial_density

Calculate sampling density for radial trajectories.

radial_trajectory

Calculate a radial trajectory.

radial_waveform

Calculate a radial readout waveform.

random_mask

Returns a random sampling mask with the given density.

spiral_trajectory

Calculate a spiral trajectory.