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. Author manuscript; available in PMC: 2014 Jan 31.
Published in final edited form as: Phys Med Biol. 2012 Mar 5;57(6):1477–1498. doi: 10.1088/0031-9155/57/6/1477

Figure 6.

Figure 6

Registration error as a function of regularization parameter, λ. Different parameters are tested on 5 sets of images acquired form 5 different patients. Blue lines: number of “active” landmarks M = 50 and σ = 50 mm; green lines: M = 50 and σ = 100; red lines: M = 75 and σ = 50. The distances between “passive” landmarks (accuracy of registration) are shown by solid lines, the distances between “active” landmarks (mismatch error) are shown by dashed lines.