7Herold M, Roberts D, Smadi O, et al. Road condition mapping with hyperspectral remote sensing[ C ]//NASA Jet Propulsion Labo- ratory.Proceedings of the 2004 AVIRIS workshop. California: Pasadena, 2004.
8Zhang C. Development of a uav-based remote sensing system for unpaved road condition assessment [ C ]//The American Society for photogrammetry and Rerote Sensing.ASPRS 2008 Annual Conference. Oregon:Portland, 2008.
9Puri A.A Survey of Unmanned Aerial Vehicles (UAV) for Traffic Surveillance [ R]. SouthFlorida: Department of Computer Sci- ence and Engineering, University of SouthFlorida,2005.
