Intrinsic Feature-Based Pose Measurement for Medical Imaging Motion Compensation

Tracking is done without using extrinsic markers, fiducials, or other added features. Optical images are acquired from two or more cameras with infrared or visible wavelength illumination. These images are processed to extract intrinsic, natural features, calculate 3D locations, track features in time, and determine relative position and orientation from one image frame to the next frame. The 3D position and orientation changes over time are measured and used to compensate the reconstructed 3D image.

•Improved quality of medical imaging scans
•No preparation time needed for marker attachment
•High accuracy measurements with no effect on scan time