基于菲涅尔偏振反射理论的消眩光分析与实验验证

发布时间：2018-01-18 14:22

本文关键词：基于菲涅尔偏振反射理论的消眩光分析与实验验证　出处：《光子学报》2017年07期 　论文类型：期刊论文

【摘要】：以菲涅尔偏振反射理论为依据,将入射光进行电矢量分解,推导出影响眩光强度的偏振因子,并分析该因子在眩光消除中所起的主导作用.根据成像检测模型,推导出决定眩光位置和眩光区域大小的位移因子,并分析该因子在眩光消除中起的辅助作用.测量工业上某种工件在相同环境中不同条件下的图像,将所得图像数据进行抽样对比,得到在不同偏振和不同位置情况下的图像灰度变化曲线.分析灰度变化曲线与偏振及位置的关系,并对所提出的理论加以验证.结果表明眩光消除的本质是降低眩光区域与邻域区域之间的光强对比度,对位移因子和偏振因子的联合调动可实现对眩光几乎完全的消除.
[Abstract]:Based on the theory of Fresnel polarization reflection, the incident light is decomposed by electric vector, and the polarization factor affecting the intensity of glare is deduced, and the dominant role of the factor in the elimination of glare is analyzed. The displacement factor which determines the glare position and the size of glare region is deduced, and the auxiliary effect of this factor in the glare elimination is analyzed. The image of a workpiece in industry under different conditions in the same environment is measured. The image grayscale change curve is obtained under different polarization and different position, and the relationship between gray change curve and polarization and position is analyzed. The results show that the essence of the elimination of glare is to reduce the contrast between the glare region and the neighborhood region. The combination of displacement factor and polarization factor can eliminate glare almost completely.
【作者单位】：广东工业大学物理与光电工程学院光电视觉检测工作室;
【基金】：国家自然科学基金(No.61675050) 广东省科技计划项目(No.2016B090918128) 广州市科技计划项目(No.2014J4100205)资助~~
【分类号】：O436.3;TP391.41
【正文快照】： 0引言以工业4.0为代表的全球化技术革命对光电视觉检测性能提出了更高层次的要求,在产品在线检测、制造全程监控、高精度测量、人工智能识别定位等领域,已基本实现光电视觉智能检测化.然而在此类应用中,1-2005170大部分被测对象表面会由于光源的位置、角度、强度的复杂性而发

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