Supporting Navigated Surgery with Pan-Tilt Controlled Laser Pointer
نویسندگان
چکیده
This work introduces a laser guidance system for improving the performance of surgical navigation. It consists of a laser pointer mounted on a pan-tilt platform calibrated with the tracking system from the navigation platform. With two pan-tilt rotation axes, the laser beam of a green laser pointer can reach any location in 3D space. The calibration between the pan-tilt platform and the tracking system is done by using Levenberg-Marquardt and Least-Squares Estimation of Transformation algorithms. The registration between organ and 3D virtual model is obtained by the tracking system and therefore, the laser is also implicitly registered. Therefore, important points or the resection path of the 3D model can be projected precisely on the surface of the organ with the laser pointer.
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