High-resolution, high-speed three-dimensional shape measurement using projector defocusing," Opt. Eng., 2011
/[28] Y. Gong* and S. Zhang, "High-resolution, high-speed three-dimensional shape measurement using projector defocusing," Opt. Eng., 50(2), 023603, 2011; doi: 10.1117/1.3534798
We present a high-resolution, high-speed three-dimensional (3-D) shape measurement technique that can reach the speed limit of a digital fringe projection system without significantly increasing the system cost. Instead of generating sinusoidal fringe patterns by a computer directly, they are produced by defocusing binary ones. By this means,with a relatively inexpensive camera, the 3-D shape measurement system can double the previously maximum achievable speed and reach the refreshing rate of a digital-light-processing projector: 120
