Intensity-based 2D-3D spine image registration incorporating one fiducial marker

Abstract

In this paper, we propose a hybrid similarity measure for 2D-3D image registration that is a weighted combination of an intensity-based image similarity measure and a point-based measure incorporating a single fiducial marker. We evaluate its accuracy and robustness using gold-standard clinical spine image data. The use of one fiducial marker substantially improves registration accuracy and robustness. © Springer-Verlag Berlin Heidelberg 2003.