Vision System for an Unmanned Helicopter Landing in Complex Environment

This paper presents a vision-based navigation algorithm for an autonomous helicopter landing in complex environment include appointed landing mark coupled with several similar targets. The vision navigation system is integrated with algorithms of vision detection, target recognition and navigation instruction calculation. The navigation is used for indicating the helicopter to land on the landing mark exactly. In our algorithm, we use international standard landing mark as helicopter landing signal. The experiments results demonstrate that the algorithm has feature of robustness, accuracy and realtime. It meets the actual flight requirements well.