| 欠采样包裹相位图的恢复方法 |
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| 引用本文： | 范琦,杨鸿儒,黎高平,袁良,姜昌录,郭羽.欠采样包裹相位图的恢复方法[J].光学学报,2011(3):71-75. |
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| 作者姓名： | 范琦 杨鸿儒 黎高平 袁良 姜昌录 郭羽 |
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| 作者单位： | 西安应用光学研究所光学计量实验室;空军工程大学理学院; |
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| 基金项目： | 陕西省自然科学基金(2010JM8012)资助课题 |
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| 摘 要： | 针对非球面光学元件面形检测中的欠采样问题,提出了一种欠采样包裹相位图的恢复方法.首先,将原始欠采样包裹相位图在水平和竖直两个方向进行一个像素的错位相减,得到两个包裹相位差图.其次,对这两个包裹相位差图进行解包裹运算,得到两个解包裹相位差图.最后,应用傅里叶变换和最小二乘法恢复出连续的相位分布.模拟结果表明该方法可以高精...
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| 关 键 词： | 傅里叶光学 欠采样 包裹相位 剪切干涉 傅里叶变换 最小二乘法 |
Method for Phase Recovery from a Single Undersampled Wrapped Phase Map |
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| Fan Qi, Yang Hongru Li Gaoping Yuan Liang Jiang Changlu Guo Yu.Method for Phase Recovery from a Single Undersampled Wrapped Phase Map[J].Acta Optica Sinica,2011(3):71-75. |
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| Authors: | Fan Qi Yang Hongru Li Gaoping Yuan Liang Jiang Changlu Guo Yu |
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| Abstract: | Aiming at the problem of undersampling in the aspheric testing,a method for phase recovery from a single undersampled wrapped phase map is presented.Firstly,two wrapped phase differences are gained by subtracting the original undersampled wrapped phase with its two sheared copies along two orthogonal directions while the sheared value is 1 pixel.Secondly,the unwrapping is performed for the two wrapped phase differences.Finally,the searched phase is obtained by using the Fourier transform and least square al... |
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| Keywords: | Fourier optics undersampling wrapped phase shearing interferometry Fourier transform least square |
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