1. A navigation system for registering an image space to a physical space relative to a patient for a surgical procedure, comprising: a tracking system including a localizer and a tracking device; a system operable to access intraoperative image data of the patient that was acquired at a determined position relative to the patient in the physical space; a processor operable to at least one of determine a position of the tracking device in the physical space, determine an intraoperative image data fiducial point in the intraoperative image data, determine a preoperative image data fiducial point in a preoperative image data, correlate the intraoperative image data and the preoperative image data with the intraoperative image data fiducial point and the preoperative image data fiducial point, or combinations thereof; wherein the preoperative image data is operable to be registered to the physical space to correlate points in the preoperative image data with corresponding points in the physical space based upon the intraoperative image data that was acquired at the determined position relative to the patient; wherein the registered preoperative image data allow navigation of the tracking device in the physical space relative to the preoperative image data; wherein the processor is operable to determine the position of an intraoperative imaging system to determine a position relative to the determined intraoperative fiducial image data point in the physical space.