An Active Contour Approach to Extract Feature Regions from Triangular Meshes
Kyungha Min, Moon-Ryul Jung · KSII Transactions on Internet and Information Systems · 2011
We present a novel active contour-based two-pass approach to extract smooth feature regions from a triangular mesh.In the first pass, an active contour formulated in level-set surfaces is devised to extract feature regions with rough boundaries.In the second pass, the rough boundary curve is smoothed by minimizing internal energy, which is derived from its curvature.The separation of the extraction and smoothing process enables us to extract feature regions with smooth boundaries from a triangular mesh without user's initial model.Furthermore, smooth feature curves can also be obtained by skeletonizing the smooth feature regions.We tested our algorithm on facial models and proved its excellence.