Best wavelet packet bases in a JPEG2000 rate-distortion sense: The impact of header data

This paper discusses optimal wavelet packet basis selection within JPEG2000. Two algorithms of Lagrangian rate distortion optimal wavelet packet basis selection for JPEG2000 are presented. The first and more conservative approach considers the JPEG2000 packet body data in the rate distortion optimization only, while the other technique additionally integrates packet header data. The algorithms are evaluated on the FVC2004 fingerprint databases and other textured image data. Results demonstrate that inclusion of header data information into rate distortion optimization leads to superior compression results. For the first time the maximum performance gains of custom isotropic wavelet packets in JPEG2000 can be assessed.