Describe the registration of external sections operative image acquisition equipment (such as endoscope) of preoperative and live profile mark using anatomical object. Control unit includes processor, the processor is configured to being compared real time profile mark with the database of the preoperative profile mark of anatomical object to generate and be used to select the matched one group of potential silhouette tag match of final profile. Being registrated for image capture device and surgical site is realized based on orientation corresponding with selected final profile tag match.
