1. Visual odometry;Nistér,2004
2. Strapdown inertial navigation technology;Titterton;IEEE Aerosp. Electron. Syst. Mag.,2005
3. Multiple optical flow sensors aiding inertial systems for UAV navigation;Liu,2016
4. LSD-SLAM: Large-scale direct monocular SLAM;Engel,2014
5. Direct visual-inertial odometry with stereo cameras;Usenko,2016