Evaluation of Interpolation Effects on Upsampling and Accuracy of Cost Functions-Based Optimized Automatic Image Registration
Figure 6
Example 2D histograms for (a) the same MR images of the head, (b) MR and CT images of the head. The left columns show two images when aligned, the middle columns show two image when translated by 2 mm, and the right columns show two images when translated by 5 mm. As can be seen, the joint histogram disperses with increasing mis-registration (obtained from Hill et al. (1994)).
