Yuanning Liu Xiaodong Zhu Lingge Sui Zhen Liu Morphological Zerotree Compression Coding Based on Integer Wavelet Transform for Iris Image. 277-282 2007 conf/aina/2007w1 AINA Workshops (1) http://doi.ieeecomputersociety.org/10.1109/AINAW.2007.258 db/conf/aina/ainaw2007-1.html#LiuZSL07