Three-dimensional shape reconstruction from images blurred by motion

Most 3-D shape measurements for a dynamic object always require that the obtained images not be blurred by motion. We show that it is not necessary to avoid the blurred image when projected fringe profilometry is employed. For objects that move within one period of the projected fringes, 3-D surfaces can be retrieved directly from the blurred fringes. Consequently, the presented method intensively reduces the cost of the detection system. (C) 2009 Society of Photo-Optical Instrumentation Engineers. [DOI:10.1117/1.3180865]