| 混合反射特性表面形貌测量中光刀条纹的提取方法 |
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| 引用本文： | 赵博华,王伯雄,杨博淙,罗秀芝. 混合反射特性表面形貌测量中光刀条纹的提取方法[J]. 清华大学学报(自然科学版), 2011, 0(8): 1084-1088 |
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| 作者姓名： | 赵博华 王伯雄 杨博淙 罗秀芝 |
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| 作者单位： | 清华大学精密仪器与机械学系精密测试技术及仪器国家重点实验室; |
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| 摘 要： | 该文通过分析混合反射特性表面在实施光刀法三维形貌测量过程中的噪声来源,给出了噪声与有效条纹图像形态学特征的差异。根据两者的灰度连续性差异,提出了去除噪声的图像处理方法。首先增强条纹状噪声的灰度离散化程度,使用灰度阈值的图像分割方法,分离噪声与背景亮度,同时保持有效条纹的灰度连续性;再通过基于图像形态学的处理方法去除已经颗粒化的噪声,对已去噪图像的有效条纹进行边缘修复和断线连接,得到有效条纹的二值化掩模图像。用掩模图像与原图像相乘,可提取出原图像中的有效信息。结果表明:该方法从具有噪声的光刀图像中准确地提取出了有效条纹。
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| 关 键 词： | 光切法 混合反射表面 噪声去除 |
Extraction method for light-sectioning stripes in the profile measurement of hybrid reflection surfaces |
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| ZHAO Bohua,WANG Boxiong,YANG Bocong,LUO Xiuzhi. Extraction method for light-sectioning stripes in the profile measurement of hybrid reflection surfaces[J]. Journal of Tsinghua University(Science and Technology), 2011, 0(8): 1084-1088 |
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| Authors: | ZHAO Bohua WANG Boxiong YANG Bocong LUO Xiuzhi |
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| Affiliation: | ZHAO Bohua,WANG Boxiong,YANG Bocong,LUO Xiuzhi(State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instruments and Mechanology,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The difference between the noise and the valid stripe in image morphological characteristics was obtained by analyzing the hybrid reflection surface noise sources during 3-D profile measurement using the laser sectioning method.A denoising method was then developed based on the difference of image gray continuity.The stripe-shaped noise gray dispersion is enhanced,and the noise and background lightness are separated using image segmentation based on the gray level threshold,with the valid stripe gray contin... |
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| Keywords: | light-sectioning hybrid reflection surface denoising |
| 本文献已被 CNKI 等数据库收录！ |
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