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Flight safety is the basis for the development of civil aviation. According to statistics ,40%-50% of flight accidents occur in take-off and landing "black ten minutes ". In order to ensure the safety rate of aircraft under severe weather conditions, the histogram optimization technique and the weight adaptive algorithm of morphology are used to de-fog and reduce noise in the surveillance video airports.After that, the optical flow method and the hybrid Gauss-Karman filter are used to detect, track and predict multiple targets simultaneously. Finally, the camera calibration algorithm is established to transform the camera angle of view from the airport angle of view, and a complete early warning system for airport runway intrusion is constructed.