A higher-order active contour model of a 'gas of circles' and its application to tree crown extraction.

Péter Horváth Ian H. Jermyn Zoltan Kato Josiane Zerubia A higher-order active contour model of a 'gas of circles' and its application to tree crown extraction. 699-709 2009 42 Pattern Recognition 5 http://dx.doi.org/10.1016/j.patcog.2008.09.008 db/journals/pr/pr42.html#HorvathJKZ09