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The aim of this paper is to develop an optical see-through display (OSTD) system applied to the oral implant training. The proposed system includes the calibration, virtual objects and augmented reality (AR) visualization. For the image on the mircodisplay is projected through the lens and located between the lens and the focal point. The calibration is used to determine the intrinsic camera parameters. In addition, the transformation among the human's eye, the tracking camera and the magnification of the lens can be computed by the geometry calibration. Finally, the virtual objects can be superimposed upon an existing scene and registered correctly during the tracking. For AR visualization, the useful information, such as the nerve canal, can be viewed during the training. Finally, the proposed system can provide an efficient, stable and realistic method for users in the oral implant operations. © 2012 CAD Solutions, LLC.

The Development of Optical See-through Display Based on Augmented Reality for Oral Implant Surgery Simulation