Experiments in 3D measurements by using single camera and accurate motion

A method to capture 3D coordinates of object features is described and preliminary results of our experiments are presented. Our method is based on the utilisation of traditional parallax equations, determination of undistorted image coordinates, and accurately known motion of a CCD-camera. Error sources of the method are described and equations to estimate the effect of these errors on the results of the 3D reconstruction derived. An experimental setup suitable for light assembly application measurements was constructed. The properties of our method were analysed and preliminary 3D reconstruction experiments were performed with the aid of the setup facilities. A relative accuracy of 1:6000 (0.016 mm RMSE) was obtained, when a test object was measured.