1. Multiresolution Information Mining for Pavement Crack Image Analysis
2. Bouguet J. Y. (2008). Camera Calibration Toolbox for MATLAB.
3. Small-Format Aerial Photography for Highway-Bridge Monitoring
4. Dongna H. Tian T. Hengxiang Y. Shibo X. and Xiujin W. (2012 15-17 July 2012). Wall crack detection based on image processing. Paper presented at the Intelligent Control and Information Processing (ICICIP) 2012 Third International Conference on.
5. Elias B. (2012). Pilotless Drones: Background and Considerations for Congress Regarding Unmanned Aircraft Operations in the National Airspace System. Retrieved from http://www.fas.org/sgp/crs/natsec/R42718.pdf.