Globally Optimal Energy Minimization Techniques - Bezier and Splines in Image Processing and Machine Vision - page 220

(a) (b)

Fig. 10.17. Comparison of 3D lung MRI image segmentation using (a) discrete min-
cut, and (b) continuous GMS. Note the unnatural staircase effect in the segmentation
of the lower left lung due to grid bias. Computation time was 2 minutes for min-cut
and 30 seconds for GMS using a 1Ghz Pentium c

computer. (Images provided by

Ben Appleton.)

Fig. 10.18. Application of GMS to 2D lung Xray image segmentation. Evolution
of the potential function used to find the global minimal surface. (Images provided
by Ben Appleton.)