Detect and avoid system based on multi sensor fusion for UAV

With the rapid growth of the personal drone market, manufacturers of unmanned aerial vehicles(UAV) mainly used in the existing military field are expanding its application in various fields such as leisure, industrial, and public as well. In addition, the autonomous flight of UAV is being developed through combination with various sensors and signal processing technologies. Obstacle detect and avoidance is the most important function to ensure safety of autonomous flight mode. In this paper, we propose an obstacle detect and avoid technique that combines a 2D LiDAR with a stereo camera for safe navigation in autonomous flight of a multi-copter UAV.