In Proceedings of the 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Hamburg, Germany, 28 September–2 October 2015. [Google Scholar] Bloesch, M.; Burri, M.; Omari, S.; Hutter, M.; Siegwart, R. IEKF-based Visual-Inertial Odometry using Direct Photometric ...