A monocular vision 3D measurement method based on rotating lens

In this paper, a monocular vision measurement method based on rotating lens is proposed. A special optical lens is placed between the target and the camera, which causes light refraction during the measurement process. By analyzing images taken after different light refraction, the 3D coordinates of the target can be obtained. Using this method, 3D measurement of the full field can be completed with no laser assisted. Besides the 3D information of a target can be measured without requirements for a priori knowledge of feature points on the target or the location information of the lens. Finally experiments are conducted in the laboratory, and results show that excellent accuracy can be obtained with proposed method.