Multisensor Video Object Fusion and Interpretation for Surgical Navigation

Multisensor video object fusion can be used when multiple scenes of the same object are captured using multiple sensors. The method is useful for a wide variety of applications such as video surveillance, traffic monitoring, satellite imaging, automated inspection system etc. In this paper a novel computer assisted surgical navigation method has been developed using video object fusion using two orthogonally placed sensors or cameras. The modality of using orthogonally placed cameras is useful for analysis of the position and orientation of a micro motor drill in the three dimensional co-ordinates. The orthogonally placed cameras, perpendicular to the plane of motion of the drill under inspection, improve the overall sensitivity of measurement. The drill is used for orthopaedic procedures such as drilling of pilot hole into the pedicle region of human vertebra for the insertion of pedicle screws. The study reveals that real world position of the drill calculated using the 3D image co-ordinates gives precise drill positioning with respect to the 3D real world co-ordinates.