摘要
A method to extract phase shifts and reconstruct the object wave in generalized phase-shifting interferometry(GPSI)is proposed.The phase distribution of a standard phase object and the least-square method are used to extract phase shifts over a wide range from 0 to𝜌π.Consequently,the tested object wave can be further reconstructed with the extracted phase shifts.It is accurate and applicable for GPSI of any frame number𝑂(N𝑂≥2).Computer simulation has verified its feasibility and validity.
基金
Supported by the National Natural Science Foundation of China under Grant No 61275014
the Science and Technology Program of Shandong Province under Grant No 2011GGH20119
the Natural Science Foundation of Shandong Province under Grant No ZR2011FQ011.
