Rotation-invariant features based on steerable transforms with an application to distributed image classification.

Baltasar Beferull-Lozano Antonio Ortega Hua Xie Rotation-invariant features based on steerable transforms with an application to distributed image classification. 521-524 2003 ICIP (3) db/conf/icip/icip2003-3.html#Beferull-LozanoOX03