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Model-based matching for precise sensor fusion

Image sensor fusion techniques such as model supported exploitation require accurate image support data to ensure accurate image-to-image or image-to-site model registration. Photogrammetric control of imagery is currently a time consuming process but necessary for these applications. For areas which are exploited repeatedly, a database of control features can be built and used by an automatic algorithm to control new images. The algorithm automatically locates the control features in the images and uses the resulting correspondences to perform a rigorous adjustment of the image support data which accurately ties the image to ground coordinates. Other source data referenced to ground coordinates is by association registered to the imagery and can be used to support sensor/data fusion algorithms. The approach for creating, maintaining and applying the control features is discussed.