Title :
Three-dimensional elastic matching of volumes
Author :
Moshfeghi, Mehran ; Ranganath, Surendra ; Nawyn, Ken
Author_Institution :
Philips Lab., Briarcliff Manor, NY, USA
fDate :
3/1/1994 12:00:00 AM
Abstract :
Registering volumes that have been deformed with respect to each other involves recovery of the deformation. A 3-D elastic matching algorithm has been developed to use surface information for registering volumes. Surface extraction is performed in two steps: extraction of contours in 2-D image planes using active contours, and forming triangular patch surface models from the stack of 2-D contours. One volume is modeled as being deformed with respect to another goal volume. Correspondences between surfaces in the two image volumes are used to warp the deformed volume towards its goal. This process of contour extraction, surface formation and matching, and warping is repeated a number of times, with decreasing image volume stiffness. As the iterations continue the stretched volume is refined towards its goal volume. Registration examples of deformed volumes are presented
Keywords :
feature extraction; image processing; 2-D contours; 2-D image planes; 3-D elastic matching algorithm; 3D image registration; active contours; deformation; image volumes; iterations; surface extraction; surface formation; surface information; surface matching; three-dimensional elastic matching; triangular patch surface models; warping; Active contours; Biological system modeling; Biomedical imaging; Data mining; Deformable models; Image registration; Pattern matching; Polynomials; Prototypes; Springs;
Journal_Title :
Image Processing, IEEE Transactions on
