Using geometrical features to match CT and MR brain images
Martinez Antoine, van den Elsen Petra A., Viergever Max A. · Studies in health technology and informatics · 1995
In this paper, we will show the feasibility of using ridgeness for rigid automatic matching of CT and MR brain images. Image ridgeness can be computed by convolving the image with derivatives of Gaussians. The specific derivatives involved are based on the local gradient and second order structure. The width of the used Gaussian determines the locality of the ridgeness computed.