| 用数字滤波消除散斑条纹图噪声 |
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| 引用本文： | 胡逸群.用数字滤波消除散斑条纹图噪声[J].光学学报,1989,9(1):1-67. |
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| 作者姓名： | 胡逸群 |
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| 作者单位： | 长沙铁道学院科研所 |
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| 摘 要： | 本文讨论了散斑摄影条纹图的噪声来源及模型,设计合适的数字滤波器.采取正交实验手段,全面分析了噪声、条纹对比度和密度对条纹方向及间距测量精度的影响.
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| 关 键 词： | 数字滤波 散斑条纹图 衍射晕 |
Noise reduction in speckle photography fringe pattern using digital filtering |
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| HU YIQUN.Noise reduction in speckle photography fringe pattern using digital filtering[J].Acta Optica Sinica,1989,9(1):1-67. |
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| Authors: | HU YIQUN |
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| Abstract: | The noise sources and model in speckle photography fringe pattern is discussed and a noise filter for this model is designed. By means of orthogonal experiment, the effects of noise, visibility and fringe density on the measuring accuracy of fringe direction and space are analysed in detail. |
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| Keywords: | speckle photography fringe pattern digital filtering diffraction halo |
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