Geoffroy Rivet Sabourin Alexandra Branzan Albu Denis Laurendeau Luc Beaulieu Automatic contour retrieval in annotated trus prostate images. 85-88 2008 ISBI http://dx.doi.org/10.1109/ISBI.2008.4540938 conf/isbi/2008 db/conf/isbi/isbi2008.html#SabourinALB08