Fast Feature Extraction Using Approximations to Derivatives with Summed-Area Images.

Paul P. Wyatt Hiroaki Nakai Fast Feature Extraction Using Approximations to Derivatives with Summed-Area Images. 776-786 2006 conf/accv/2006-1 ACCV (1) http://dx.doi.org/10.1007/11612032_78 db/conf/accv/accv2006-1.html#WyattN06