Acta Photonica Sinica, Volume. 40, Issue 7, 978(2011)
Phase Shifting Shadow Moiré by Iterative Leastsquares Fitting
Shifting shadow moiré iterative algorithm and procedures for both the calibration of phase shifter and noise reduction approaches are proposed. Compared with the traditional shifting shadow moiré method, the proposed method is insensitive to the height dependent effects and can determine the pointwise phase step during the process of demodulation. The effectiveness of the proposed method is demonstrated by both simulations and experiments. They are shown that the proposed method can effectively minimize the effects of the phaseshifting errors and possess a superior performance than existing typical phase shifting algorithms in shifting shadow moiré technique.
Get Citation
Copy Citation Text
DU Hubing, ZHAO Hong, LI Bing, LI Zhengwei, ZHENG Liang, FENG Leilei. Phase Shifting Shadow Moiré by Iterative Leastsquares Fitting[J]. Acta Photonica Sinica, 2011, 40(7): 978
Received: Sep. 26, 2010
Accepted: --
Published Online: Aug. 10, 2011
The Author Email: Hubing DU (xh.dhub@stu.xjtu.edu.cn)