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It is not new about unmanned aerial vehicles (UAV) in military and civil community. These UAVs are widely being used for remote sensing applications including observation, exploration, mapping or inspection of areas, for taking agricultural pictures or traffic monitoring etc.
Quadrocopter, a latest automated visual tracking approach is the modernized UAVs is equipped with latest and powerful technologies. It contains brushless motors, radiation and acceleration sensors, onboard 8-bit microcontroller, Wii remote IR camera and much more. Main parts, besides localization, of this abandonment are control of the flight, generating a map and planning a path in three dimenstions.
Further information can be found on the project site here. Watch the videos below to get the clear picture about this powerful Gadget.