Abstract:

The relative principle of optical threedimensional measurement based on phaseshift technique is introduced. Combining with the optimization method for the first time, error estimation of the traditional fivesample phase shifting algorithm is studied. According to the phase unwrapping principle, a weighted least square phase unwrapping algorithm is proposed. For the object problem, the Matlab program of two different optimization methods is designed on the 2D phase unwrapping. Comparing and analyzing its result, the function and efficiency are verified.

Key words: shift phase; phase unwrapping; leastsquare method; genetic algorithm