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Omnidirectional vision applied to Unmanned Aerial Vehicles (UAVs) attitude and heading estimation
Authors:Iván F Mondragón  Pascual Campoy  Carol Martinez  Miguel Olivares
Affiliation:1. Robots & Intelligent Systems Lab, Gyeongsang National University, Jinju, Republic of Korea;2. School of Mechanical and Aerospace Engineering & ReCAPT, Gyeongsang National University, Jinju, Republic of Korea
Abstract:This paper presents an aircraft attitude and heading estimator using catadioptric images as a principal sensor for UAV or as a redundant system for IMU (Inertial Measure Unit) and gyro sensors. First, we explain how the unified theory for central catadioptric cameras is used for attitude and heading estimation, explaining how the skyline is projected on the catadioptric image and how it is segmented and used to calculate the UAV’s attitude. Then, we use appearance images to obtain a visual compass, and we calculate the relative rotation and heading of the aerial vehicle. Finally the tests and results using the UAV COLIBRI platform and the validation of them in real flights are presented, comparing the estimated data with the inertial values measured on board.
Keywords:
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