A Novel Technique for Prealignment in Multimodality Medical Image Registration
Figure 14
Simulated test result of partial occlusion. (a) Shifted T2 MRI image which was generated by synthetically shifting the content of rotated T2 MRI. (b) Magnitude weighted orientation histogram of shifted T2 MRI image. (c) shows the values of histogram matching. The similarity metric is tested by L1 and L2 norm, respectively. The minimum value of the cost function T corresponds to along the horizontal coordinate. The obtained orientation difference is 11°.
