@article {wong2008efficient,
	title = {Efficient least squares fusion of MRI and CT images using a phase congruency model},
	journal = {Pattern Recognition Letters},
	volume = {29},
	number = {3},
	year = {2008},
	pages = {173{\textendash}180},
	publisher = {North-Holland},
	author = {Wong, Alexander and Bishop, William}
}
