Solving the correspondence problem and 3D reconstruction for coded structured-light system

We present a fast and high quality scanning system based on structured light. The technique is based on spatial neighborhood coding which has only a single pattern and can be applied on moving surfaces. A color grid pattern based upon De Bruijn sequences has been generated and applied. This system also uses a back propagation neural network for color correction. Experimental results using a prototype system with a camera and a lighting projector show that the proposed scheme is effective and efficient in solving the correspondence problem, even in discontinuous and blurred areas.