.A pitch-variation moiré fringes method of temporal phase unwrapping profilometry[J].Optoelectronics Letters,2007,3(3):215-218 A pitch-variation moiré fringes method of temporal phase unwrapping profilometry Abstract:       A method of pitch-variation moiré fringes is proposed to realize the temporal phase unwrapping for three-dimensional pattern by rotating two gratings. Furthermore a five-point fitting method is used to automatically compute the central duced to process the three-dimensional reconstruction. The theoretical analysis and experimental results show the validity of the proposed method. Hits: 3371 Download times: 220 View Full Text    Download reader