A new adaptive method for image compression using Karhunen-Loeve transform. - Luis Torres-Urgell; R. Lynn Kirlin (ICASSP, 1987)

An adaptive pyramid image coding system. - Sebastià Sallent Ribes; Luis Torres-Urgell (ICASSP, 1988)

Adaptive image compression using Karhunen-Loeve transform. - Luis Torres-Urgell; R. Lynn Kirlin (Signal Process., 1990)