@Article{SM_2002_8108, author = {Yamany S.M. and Farag A.A.}, journal = {PAMI}, title = {Surface signatures: {A}n orientation independent free-form surface representation scheme for the purpose of objects registration and matching}, year = {2002}, title_with_no_special_chars = {Surface signatures An orientation independent freeform surface representation scheme for the purpose of objects registration and matching} }