| 全息散斑条纹的提取及图像处理 |
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| 引用本文： | 贺安之,阎大鹏.全息散斑条纹的提取及图像处理[J].光学学报,1993,13(4):40-344. |
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| 作者姓名： | 贺安之 阎大鹏 |
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| 作者单位： | 南京理工大学应用物理系 南京210014
(贺安之，阎大鹏，余桂英，张家军)，南京理工大学应用物理系 南京210014(朱兆清) |
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| 摘 要： | 介绍了一种新的全息散斑条纹的提取方法.理论和实验表明:对全息散斑底片逐点再现时,两伴生亮斑条纹是全息散斑底片一级衍射光的杨氏干涉条纹,与中央的杨氏条纹是一致的,有较高的条纹对比度且没有背景光晕的影响.利用计算机数字图像处理技术对伴生散斑条纹进行处理,定量测试了受静载物体的面内位移.
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| 关 键 词： | 全息照相术 散斑法 图象处理 |
| 收稿时间： | 1992/11/11 |
The extraction of speckle fringes from holo-specklegram and its image processing |
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| HE Anzhi YAN Dapeng YU Guiying ZHANG Jiajun ZU Zhaoqing.The extraction of speckle fringes from holo-specklegram and its image processing[J].Acta Optica Sinica,1993,13(4):40-344. |
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| Authors: | HE Anzhi YAN Dapeng YU Guiying ZHANG Jiajun ZU Zhaoqing |
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| Abstract: | In this paper, a new method for extracting speckle fringes of a holo-specklegram is presented. It is proved theoretically and experimentally that when the interrogation of a holo-specklegram from point to point is used, the fringes in the two side lobes are the Young's interference fringes of the first-order diffraction in the holo-specklegram and is identical with the central Young' s fringes. The two side lobes fringes have high contrast and no effect of background halation. It is processed by using computer digit image processing technique and the in-plane displacement of a static load object is calculated quantitatively. |
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| Keywords: | holo-speckle speckle fringes image processing |
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