| 加窗傅里叶变换在三维形貌测量中的应用 |
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| 引用本文： | 翁嘉文,钟金钢.加窗傅里叶变换在三维形貌测量中的应用[J].光子学报,2003,32(8):993-996. |
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| 作者姓名： | 翁嘉文 钟金钢 |
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| 作者单位： | 暨南大学物理系,广州,510632 |
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| 基金项目： | 广东省自然科学资金资助 (编号 :0 10 377)项目 |
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| 摘 要： | 采用加窗傅里叶变换技术(GTGM)对变形光栅图像进行分析在窗口区域内提取基频,并随着窗口的移动进行叠加,有效地重构出全部的基频信息,改善了不同频谱的叠加现象,提高测量的精度.
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| 关 键 词： | 三维形貌 傅里叶轮廓术 加窗傅里叶变换 |
| 收稿时间： | 2002/9/18 |
| 修稿时间： | 2002年9月18日 |
Application of Gabor Transform to 3-D Shape Analysis |
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| Weng Jiawen,Zhong Jingang.Application of Gabor Transform to 3-D Shape Analysis[J].Acta Photonica Sinica,2003,32(8):993-996. |
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| Authors: | Weng Jiawen Zhong Jingang |
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| Institution: | Weng Jiawen,Zhong Jingang Department of Physics,Jinan University,Guangzhou,510632 |
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| Abstract: | Gabor transform grid method is used to analysis the deformed grating image. The first harmonic of the spectrum is extracted in the window with a Gauss function,and by changing the position of the window they are superposed, i.e. reconstructed as a global first harmonic, which amends frequency spectra overlapping. The precision of the measurement can be improved. |
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| Keywords: | Three-dimension measurement Fourier transform profilometry Gabor transform grid method |
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