Three dimensional movement measurement for the wing of a flying airplane

The movement parameters of a wing of a flying airplane are important for its design, analysis and life-estimation, while the three dimensional (3D) measurement of these parameters is a difficult task. A measurement setup is proposed as well as its corresponding calibration methods for the camera system on both ground condition and air condition, image processing algorithms and a new method of locating 3D straight lines through plane-plane intersection are developed. The test results show that the 3D measurement accuracy in the condition of flying in the air can be better than 1 mm.