The paper presents a complete algorithm for building geocoded terrestrial mosaics from aerial video accompanied by GPS/INS readings, without relying on ground survey points or reference imagery to provide geographic control. The 2D mosaic-to-video frame mappings are jointly estimated by bundle adjustment of constraints from pose sensor data and interframe registrations. Multiple-swath video collections are handled by automatically registering spatially adjacent frames across swaths. The proposed approach optimally combines the pose and interframe constraints for geocoding, unlike existing 2D mosaic techniques, while avoiding the complexity of 3D reconstruction. The method was validated on two highly dissimilar operating scenarios, with quantitative evaluation against ground truth supplied by known geocoded reference imagery. One test over hilly terrain found median mosaic continuity and geocoding errors of 1.6 m and 3.1 m, respectively, which is acceptable for many tasks. Characterization of such errors is essential for acceptance of this video mosaic process in critical geospatial applications.


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    Title :

    Geocoded terrestrial mosaics using pose sensors and video registration


    Contributors:
    Hsu, S. (author)


    Publication date :

    2001-01-01


    Size :

    1329816 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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