FLAGLET: Exact wavelets on the ball

FLAGLET provides efficient routines for the wavelet analysis of signals on the ball, the space formed by augmenting the sphere with the radial half-line.

FLAGLET exploits the S2LET, FLAG and SSHT codes to assist with wavelet construction and support harmonic transforms on the ball and sphere, respectively.

The flaglet transform is theoretically exact, i.e. the original signal can be synthesised from its wavelet coefficients exactly since the wavelet coefficients capture all the information of band-limited signals.