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Original Article

A Versatile System for Multimodality Image Fusion

, , , &
Pages 35-45 | Received 03 Feb 1995, Accepted 14 Feb 1995, Published online: 05 Jan 2010
 

Abstract

This paper presents a versatile system for registering and visualizing computed tomography and magnetic resonance images. The system utilizes a semi-automatic, surface-based registration strategy which has proven useful for registering a number of different anatomical structures. A triangular mesh approximates surfaces in one image set while a set of surface points is used as a surface approximation in the other set. A non-linear optimization procedure determines the transformation that minimizes the total sum-squared perpendicular distance between triangles of the mesh and surface points. This system has been used without modification to successfully register images of the brain, spine and calcaneus.

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