Global Min-Curvature(GMC) estimator for Digital Contours
GMC considers all the possible shapes that are digitized as this contour, and selects the most probable one with a global optimization approach. The GMC estimator exploits the geometric properties of digital contours by using local bounds on tangent directions defined by the maximal digital straight segments. The estimator is then adapted to noisy contours by replacing maximal segments with maximal blurred digital straight segments.
Usage (Tested on Ubuntu)
Cmake first and then run /bin/curvature_gmcb.cxx
GMC results :
- Curvature along contour points
- Color Map (red color is the highest curvature, blue the lowest)
B. Kerautret and J.-O. Lachaud. Curvature estimation along noisy digital contours by approximate global optimization. Patt. Reco., 42(10):2265–2278, 2009.
Thanks for kindful help from Prof. B. Kerautret