Matching shapes with self-intersections: application to leaf classification.

Farzin Mokhtarian Sadegh Abbasi Matching shapes with self-intersections: application to leaf classification. 653-661 2004 13 IEEE Transactions on Image Processing 5 http://dx.doi.org/10.1109/TIP.2004.826126 db/journals/tip/tip13.html#MokhtarianA04