@article{(Open Science Index):https://publications.waset.org/pdf/10002835, title = {A Low-Cost Vision-Based Unmanned Aerial System for Extremely Low-Light GPS-Denied Navigation and Thermal Imaging}, author = {Chang Liu and John Nash and Stephen D. Prior}, country = {}, institution = {}, abstract = {This paper presents the design and implementation details of a complete unmanned aerial system (UAS) based on commercial-off-the-shelf (COTS) components, focusing on safety, security, search and rescue scenarios in GPS-denied environments. In particular, The aerial platform is capable of semi-autonomously navigating through extremely low-light, GPS-denied indoor environments based on onboard sensors only, including a downward-facing optical flow camera. Besides, an additional low-cost payload camera system is developed to stream both infra-red video and visible light video to a ground station in real-time, for the purpose of detecting sign of life and hidden humans. The total cost of the complete system is estimated to be $1150, and the effectiveness of the system has been tested and validated in practical scenarios.}, journal = {International Journal of Aerospace and Mechanical Engineering}, volume = {9}, number = {10}, year = {2015}, pages = {1807 - 1814}, ee = {https://publications.waset.org/pdf/10002835}, url = {https://publications.waset.org/vol/106}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 106, 2015}, }