Multimodal Medical Image Registration Based on an Information-Theory Measure with Histogram Estimation of Continuous Image Representation

Table 2

Mean registration errors (mm) for 20 tests of the real 2D brain MR T1 and MR PD images using three approaches in the presence of different noise levels with their variances σ = 0.01, 0.05, and 0.1. The numbers in square brackets are the standard deviations of the errors.

Methods	= 0.01	= 0.05	= 0.1
FCHE
CHE
SH
PZW
PF