Title :
Fast geodesic active contours
Author :
Goldenberg, Roman ; Kimmel, Ron ; Rivlin, Ehud ; Rudzsky, Michael
Author_Institution :
Dept. of Comput. Sci., Technion-Israel Inst. of Technol., Haifa, Israel
fDate :
10/1/2001 12:00:00 AM
Abstract :
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
Keywords :
edge detection; image colour analysis; image motion analysis; image segmentation; image sequences; numerical stability; object detection; tracking; Adalsteinsson-Sethian level set narrow band approach; Weickert-Romeney-Viergever AOS scheme; additive operator splitting; color movies; fast geodesic active contours; fast marching method; image sequence; images; moving objects; object segmentation; re-initialization; tracking; unconditionally stable numerical scheme; Active contours; Geophysics computing; Image color analysis; Image segmentation; Level set; Motion pictures; Narrowband; Object segmentation; Partial differential equations; Solid modeling;
Journal_Title :
Image Processing, IEEE Transactions on
