Fully automatic registration of 3D cat-scan images using crest lines

This paper presents a new technique to perform automatically the 3D registration of two 3D images¹, The aim is to compute the rigid geometric transform that exists between two data acquisitions of the same patient, taken into two different positions. Our method is based on crest lines and is fully automatic. The computing time remains low because crest lines are a very compact representation of the geometric information of the 3D image.