Georegistration of motion imagery with error propagation
Mark D. Pritt, Kevin J. LaTourette · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2012
Georegistration is the assignment of geospatial coordinates to the pixels of an image. It is necessary for many activitybased intelligence tasks. Motion imagery can be difficult to georegister due to wide sensor fields of view and parallax from terrain elevations and buildings. We have developed a fully automated and accurate solution to the georegistration problem that runs in real time on a PC. It works by generating and registering predicted images from digital elevation models and fitting the parameters of the camera sensor model, including exterior and interior orientation. To estimate the geospatial accuracy, the algorithm employs rigorous error propagation techniques from the field of photogrammetry. We present results on a variety of aerial motion imagery, including full motion video and multi-camera wide area motion imagery. We also present error propagation results and comparisons with ground truth.