01079nas a2200109   4500000000100000008004100001100002100042700002600063700002300089245010600112520075100218       2006                            d1 aSzymon Kadłubek1 aAgnieszka Anna Tomaka1 aRyszard Winiarczyk00aComputer System for the Registration and Fusion of Multimodal Images for the Purposes of Orthodontics3 a<p>The paper presents aspects connected with development of a computer system for registration and fusion of multimodal images for orthodontic purposes. The idea of the system, of the multimodal image registration, lies in 3D surfaces registering, reconstructed from the sets of MRI or CT planar slices. The system enables the user to perform registration using different approaches based on localised landmarks, based on selected regions of 3D surfaces or based on automatic matching of the whole surfaces. The rigid-body transformation found during the registration is then used to transform the set of slices to generate images that can be fused. The usage of the system was illustrated and the accuracy of the registration was assessed.</p>