This vector of 64 crystal names forms the basis of
a wavelet packet transform
that is the proposed FBI standard image compression
for the fingerprint image
fingerprint.
REFERENCE:
"The FBI wavelet/scalar quanization standard for gray-scale
fingerprint image compression," J. Bradley, C. Brislawn, and T.
Hopper,
Proc SPIE
Vol. 1961, 1993.