Research on the Visual Flight Planning of UAS for Privacy Protection in Low Altitude Airspace

With the development of unmanned aerial system (UAS), more and more UAS are applied in various fields to carry out some special tasks or used for entertainment. Lack of the flight regulations for UAS market, UAS often causes a series of accidents, among which the private invasion is one of the serious problems. In the paper, the visual flight planning of UAS will be constructed to guarantee the privacy protection. The LiDAR datasets will be used to produce the digital surface model (DSM) and the digital terrain model (DTM) will be produced based on two-dimensional decomposition and morphological operation. Based on the DSM and DTM, the space zoning is divided correspondingly. Then, the edge extraction of the privacy protection region will be executed and mapped into the space zoning. Finally, the three dimensional flight planning of UAS will be produced according to the visualization technology to realize the privacy protection in low altitude airspace.