CALIBRATION METHOD FOR SURGICAL NAVIGATION SYSTEMS

摘要

The present invention relates to a calibration method of surgical navigation system using a surgical tool attached with a plurality of markers that can be recognized by a predetermined camera module, the method comprising the steps of: (a) fixating an end point of the surgical tool while having a point of an upper surface of a predetermined supporter as a rotation reference point so as to rotate the surgical tool; (b) extracting coordinate information of each marker based on a moving image of the markers attached to the surgical tool which is obtained through the camera module according to a rotation of the surgical tool; and (c) optimizing the coordinate information of each marker by using a predetermined optimization algorithm and deducing end point coordinate information of the surgical tool. In addition, the method enables to fixate the end point of the surgical tool of a surgical navigation device and to rotate the surgical tool with reference to the end point so as to measure a trajectory of the markers attached to the surgical tool, thereby easily extracting the end point of the surgical tool without using a complicated coordinate calibration method.