Patent ID: 11880988
Assignee: GE PRECISION HEALTHCARE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A rigid registration method for images based on an iterative closest point registration and a mutual information registration, comprising:
performing a coarse registration about a plurality of contour point data sets on a reference image and a floating image to be registered by using an iterative closest point registration, so as to obtain a first set of transformation parameters;
optimizing the coarse registration between the reference image and the floating image by using a mutual information registration based on the first set of transformation parameters, so as to obtain a second set of transformation parameters; and
registering the reference image and the floating image based on the second set of transformation parameters, wherein a contour point data set of each of the reference image and the floating image is extracted through a marching cubes algorithm.