JPEG2000 Part 2 wavelet packet subband structures in fingerprint recognition
Bernhard Mühlbacher, Thomas Stütz, Andreas Uhl · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2010
The impact of using different wavelet packet subband structures in JPEG2000 on the matching accuracy of a fingerprint recognition system is investigated. In particular, we relate rate-distortion performance as measured in PSNR to the matching scores as obtained by the recognition system. Employing wavelet packets instead of the dyadic wavelet transform turns out to be of advantage only in case of low bitrates (i.e. high compression rates). For such settings, the good performance of the WSQ structure is confirmed also in JPEG2000 and in particular we get better recognition accuracy using the WSQ structure as compared to the employment of a rate-distortion optimising subband selection approach