Title :
Optimized wavelets for fingerprint compression
Author :
Sherlock, B.G. ; Monro, D.M.
Author_Institution :
Sch. of Electron. & Electr. Eng., Bath Univ., UK
Abstract :
We present optimized biorthogonal and orthonormal wavelets for embedded zerotree wavelet compression of fingerprint images. These were obtained by simulated annealing over the wavelet filter coefficients using rms error between original and recovered images as the cost to be minimized. Linear-phase biorthogonal wavelets optimized for fingerprint image compression provide significantly improved fidelity compared either with standard wavelets or with wavelets optimized upon general images. These results are confirmed by psychovisual evaluation by two fingerprint experts whose independent rankings were in complete agreement. Filter coefficients for optimized orthonormal and linear-phase biorthogonal wavelets are tabulated
Keywords :
data compression; filtering theory; fingerprint identification; image coding; simulated annealing; wavelet transforms; RMS error; embedded zerotree wavelet compression; fingerprint image compression; fingerprint images; linear phase biorthogonal wavelets; optimized biorthogonal wavelets; optimized orthonormal wavelets; psychovisual evaluation; simulated annealing; wavelet filter coefficients; Discrete wavelet transforms; Filters; Fingerprint recognition; Frequency; Image coding; Image matching; Optimization methods; Psychology; Testing; Wavelet analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3192-3
DOI :
10.1109/ICASSP.1996.543934
