易学锋, 闫利. 基于数码相机莫尔效应的位移测量[J]. 武汉大学学报 ( 信息科学版), 2009, 34(4): 427-430.
引用本文: 易学锋, 闫利. 基于数码相机莫尔效应的位移测量[J]. 武汉大学学报 ( 信息科学版), 2009, 34(4): 427-430.
YI Xuefeng, YAN Li. Displacement Measurement Based on Moiré Effect of Digital Camera[J]. Geomatics and Information Science of Wuhan University, 2009, 34(4): 427-430.
Citation: YI Xuefeng, YAN Li. Displacement Measurement Based on Moiré Effect of Digital Camera[J]. Geomatics and Information Science of Wuhan University, 2009, 34(4): 427-430.

基于数码相机莫尔效应的位移测量

Displacement Measurement Based on Moiré Effect of Digital Camera

  • 摘要: 数码相机在拍摄与像素宽度相近的条纹时,像片上会出现莫尔条纹。针对数码相机莫尔效应的特点,选择了平行莫尔条纹,利用平行莫尔条纹的位移放大作用,可精确推算被摄条纹的微小移动。实验数据表明,100 m的摄影物距仍然有很高的测量精度。

     

    Abstract: Moiré fringe appears in photos when the stripes with the width similar to the pixel of digital cameras are shot.Considering Moiré effect of digital camera,we select parallel Moiré fringe.With the displacement amplification of parallel Moiré fringes,tiny movement of stripes can be calculated precisely.We expounded its calculating methods in this paper.Experimental results show that a high precision can be guaranteed within 100 m.

     

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