| 图像匹配中噪声分析和预处理 |
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| 引用本文： | 廖俊必,袁中凡,徐彧.图像匹配中噪声分析和预处理[J].光电工程,2002,29(6):61-66. |
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| 作者姓名： | 廖俊必 袁中凡 徐彧 |
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| 作者单位： | 四川大学测试与控制工程系,四川,成都,610065 |
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| 基金项目： | 教育部留学回国人员科研启动基金，四川省应用基础研究计划，2000JW035，14，， |
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| 摘 要： | 提出和证明了在三坐标测量机单镜头三维视觉系统中的图像噪声主要有三种：（1）电磁干扰噪声；（2）季节、气候和时间变化引起的噪声；（3）物体的位置和视角变化引起的噪声。相应地提出了一种基于优化图像搜索模块的有效减少和消除噪声的预处理方法。理论分析和实验均表明，该方法具有简便、可靠和速度快的优点。
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| 关 键 词： | 图像匹配 图像噪声 图像预处理 模式匹配 |
Image noise analysis and pre-processing for pattern match |
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| Abstract.Image noise analysis and pre-processing for pattern match[J].Opto-Electronic Engineering,2002,29(6):61-66. |
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| Authors: | Abstract |
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| Abstract: | This paper explains an image pre-processing methodology when using a single-camera 3D vision system for CMM auto-alignment. Three types of noise, mainly caused by (1) electromagnetic interference (2) season, weather and time changes and (3) object position or view angle changes, are classified and analyzed. According to the analysis pre-processing measures mainly base on optimizing search image model are proposed and employed to minimize the influences of noise. Theoretical analysis and experiments show that the methodology has the advantages of simplicity, efficiency and robustness. |
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| Keywords: | Image noise Image pre-processing Pattern match |
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