METHOD FOR ALIGNING A THREE-DIMENSIONAL MODEL OF A DENTITION OF A PATIENT TO AN IMAGE OF THE FACE OF THE PATIENT

摘要

Computer implemented method for aligning a three-dimensional model (6) of a patient's dentition to an image of the face of the patient recorded by a camera (3), the image including the mouth opening, comprising: • estimating the positioning of the camera (3) relative to the face of the patient, • retrieving the three-dimensional model (6) of the dentition of the patient, • rendering a two-dimensional image (7) of the dentition of the patient using a virtual camera (8), • carrying out feature detection in a dentition area in the mouth opening of the image (1) of the patient recorded by the camera (3) and in the rendered image (7), • calculating a measure of deviation between the detected feature images of the image taken by the camera (3) and the detected feature image of the rendered image, • varying the positioning of the virtual camera (8).