| 离焦散斑错位干涉术的逐点滤波分析与应用 |
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| 引用本文： | 张朝晖,李恩普.离焦散斑错位干涉术的逐点滤波分析与应用[J].光子学报,1993,22(4):342-345. |
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| 作者姓名： | 张朝晖 李恩普 |
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| 作者单位： | 西北工业大学应用物理系，西北工业大学应用物理系，西北工业大学应用物理系，西北工业大学应用物理系 西安 710072，西安 710072，西安 710072，西安 710072 |
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| 摘 要： | 通过相关计算,分析了离焦散斑错位干涉术的逐步滤波方法,得到了杨氏条纹的形成及分布特性。讨论了逐点滤波法的实用意义并给出了在缺陷检测中的应用实例。
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| 关 键 词： | 散斑错位干涉术 逐点滤波 条纹特性 缺陷检测 |
| 收稿时间： | 1992-09-19 |
POINT WISE-FILTERING DEFOCUSED SPECKLE-SHEARING INTERFEROMETRY AND ITS APPLICATION |
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| Zhang Zhaohui,Li Enpu,Chen Changle,Lu Fuyi.POINT WISE-FILTERING DEFOCUSED SPECKLE-SHEARING INTERFEROMETRY AND ITS APPLICATION[J].Acta Photonica Sinica,1993,22(4):342-345. |
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| Authors: | Zhang Zhaohui Li Enpu Chen Changle Lu Fuyi |
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| Institution: | Zhang Zhaohui,Li Enpu,Chen Changle,Lu FuyiDepartment of Applied Physics,North-western Poly technical University Xi'an 710072 |
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| Abstract: | In this paper, pointwise-filtering method for defocused speckle-shearing interfero-metry is anslyzed through correlation calculation, thus the characteristics of fringe formation and its distribution are obtained. In addition, distinctive applicability of this method is discussed, and a example of application in defeet detection is described. |
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| Keywords: | Speckle-shearing interferometry Pointwise filtering Fringe characteristic Defect detection |
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