| 基于快速傅里叶变换的实时相移校正算法 |
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| 引用本文： | 李万松,苏显渝,苏礼坤,向立群. 基于快速傅里叶变换的实时相移校正算法[J]. 光学学报, 1999, 19(10): 390-1395 |
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| 作者姓名： | 李万松 苏显渝 苏礼坤 向立群 |
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| 作者单位： | 四川联合大学光电科学技术系,成都,610064 |
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| 摘 要： | 在相移测量剖面术（ＰＭＰ）中，提出了一种基于快速傅里叶变换的相移校正算法，利用最初多采的一幅条纹图的信息和傅里叶变换调制度模板，快速地计算出当前的相移值。采用该算法，能实时准确地控制投影光栅的移动，大大提高了测量系统的工和自动化程度，具有极大的实用价值。
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| 关 键 词： | 相移测量剖面术 快速傅里叶变换 相移校正 调制度 |
| 收稿时间： | 1998-06-01 |
Simultaneous Calibration Algorithm of Phase-Shifting Based on FFT |
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| Li Wansong,Su Xianyu,Su Likun,Xiang Liqun. Simultaneous Calibration Algorithm of Phase-Shifting Based on FFT[J]. Acta Optica Sinica, 1999, 19(10): 390-1395 |
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| Authors: | Li Wansong Su Xianyu Su Likun Xiang Liqun |
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| Abstract: | 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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| Keywords: | phase measuring profilometry fast Fourier transform phase shifting calibrate modulation mask. |
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