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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Comput Med Imaging Graph. 2011 Oct 19;36(2):139–151. doi: 10.1016/j.compmedimag.2011.09.001

Table 1.

The quantitative comparisons on average distance on all registered image pairs, average overlap rate and entropy are listed for undirected graph and directed graph based registration.

mean(distp) max(distp) overlap entropy
Before registration 67.7 104.1 66.0% 0.330
Undirected graph based registration 15.8 43.2 96.1% 0.032
Directed graph based registration 13.5 30.0 97.8% 0.025