Fast geodesic active contours.
We use an unconditionally stable numerical scheme to implement a fast version of the geodesic active contour model. The proposed scheme is useful for object segmentation in images, like tracking moving objects in a sequence of images. The method is based on the Weickert-Romeney-Viergever (additive operator splitting) AOS scheme. It is applied at small regions, motivated by the Adalsteinsson-Sethian level set narrow band approach, and uses Sethian's (1996) fast marching method for re-initialization. Experimental results demonstrate the power of the new method for tracking in color movies.
Goldenberg
R
R
Dept. of Comput. Sci., Technion-Israel Inst. of Technol., Haifa. romang@cs.technion.ac.il
Kimmel
R
R
Rivlin
E
E
Rudzsky
M
M