SNAP: A Software Package for User-Guided Geodesic Snake Segmentation
Sean Ho, Heather Cody, Guido Gerig · 2003
Abstract. We present a new software package for interactive segmentation of 3D images by geodesic snakes, with manual editing. Several variants of level set snakes are incorporated, including both gradientmagnitude based snakes as well as region-competition snakes. A complete segmentation pipeline, including image preprocessing, bubble initialization and parameter control, is provided in an intuitive user interface. Slice-based overpainting is also provided in the same framework, for manual editing of the automatic snake segmentation. This tool is already in daily use by clinicians and offers a vast improvement in speed over traditional manual segmentation. We present examples from several clinical studies, as well as validation results comparing the automatic geodesic snakes segmentation with manual expert rater segmentation. 1