DIMENSION REDUCTION BASED ON CENTROIDS FOR MULTIMODAL ANATOMICAL LANDMARK-BASED 3D/2D REGISTRATION OF CORONARY ANGIOGRAMS Topics: Medical Imaging (Radiology, Magnetic Resonance, Ultrasound, Brain Mapping) In Proceedings of the International Conference on Imaging Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 0VISIGRAPP, 49-56, 2010 , Angers, France