Young-Ho Son Bum-Jae You Sang-Rok Oh Gwi-Tae Park Affine-Invariant Pattern Recognition using Momentums in Log-Polar Images. 797-804 2004 conf/fgr/2004 FGR http://csdl.computer.org/comp/proceedings/fgr/2004/2122/00/21220797abs.htm db/conf/fgr/fgr2004.html#SonYOP04