Reconstruction of three-dimensional object by point array projection using active lens array

Recently, integral imaging is of great importance in three-dimensional capture and display due to its distinctive advantages over other competing technologies. Integral imaging displays a 3D image in real time without the use of special glasses on the part of the viewer. Integral imaging can also capture three-dimensional object as a form of an array of elemental images. However, the resolution of the captured three-dimensional information is limited due to generally insufficient resolution of individual elemental image. In this paper, we use an active lens array combined with an algorithm that can improve the resolution of the captured three-dimensional information. Using the captured three-dimensional information, three-dimensional mesh model of the captured object can be constructed. The proposed algorithm is based on analysis of two-dimensional images of object on which the point array is projected by the active lens array of varying focal length. From the shape of the projected points, the depth of each position on the three-dimensional object is determined. Our simulation and experimental results show that the proposed method has higher resolution then previous depth sensing methods based on integral imaging.