Acta Optica Sinica, Volume. 19, Issue 10, 1390(1999)
Simultaneous Calibration Algorithm of Phase-Shifting Based on FFT
In phase-measuring profilometry (PMP), a new simultaneous calibration algorithm of phase-shifting based on fast Fourier transform (FFT) is presented. The current phase shifting is calculated with the help of the information of a additional fringe pattern and a FFT modulation mask. With this algorithm, the moving of the project grating can be controlled accurately and simultaneously, the accuracy and the automation of the measuring system are improved greatly.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Simultaneous Calibration Algorithm of Phase-Shifting Based on FFT[J]. Acta Optica Sinica, 1999, 19(10): 1390