Yuichi Tanaka Masaaki Ikehara Truong Q. Nguyen Unequal Length First-Order Linear-Phase Filter Banks for Efficient Image Coding. 173-176 2007 ICIP (4) http://dx.doi.org/10.1109/ICIP.2007.4379982 conf/icip/2007 db/conf/icip/icip2007-4.html#TanakaIN07