TY - RPRT TI - Feature and Pose Constrained Visual Aided Inertial Navigation for Computationally Constrained Aerial Vehicles AU - Williams, Brian AU - Hudson, Nicolas AU - Tweddle, Brent AU - Brockers, Roland AU - Matthies, Larry PY - 2011 UR - https://ntrs.nasa.gov/citations/20120003288 ID - 20120003288 ER -