Internal Functions#

Spherical Operations#

Function Name

Description

make_flm_full()

Reflects real harmonic coefficients to a complete set of coefficients using hermitian symmetry.

make_flm_real()

Compresses harmonic coefficients of a real signal into positive coefficients only which leverages hermitian symmetry.

quadrature()

Generates spherical quadrature weights associated with McEwen-Wiaux sampling.

Precompute helpers#

Function Name

Description

generate_precompute_matrices()

Generates the full set of precompute matrices for the scattering transform with \(\mathcal{O}(NL^3)\) memory overhead.

generate_recursive_matrices()

Generates a small set of recursive matrices for underlying Wigner-d recursion algorithms with a modest \(\mathcal{O}(NL^2)\) memory overhead.