Rapid and automatic optimal exposure control for digital fringe projection technique

This paper presents a method that can determine the optimal exposure time for high-quality three-dimensional (3D) shape measurement with digital fringe projection technique. The proposed method only requires capture fringe image(s) with one exposure time to automatically determine the global optimal exposure time for high-quality 3D shape measurement; and we further propose to automatically achieve high-dynamic range (HDR) 3D shape measurement by capture image(s) with the optimized global single exposure. Experimental results demonstrated the proposed method can successful work on a static complex scene and can also be applicable for real-time applications.