| 光切法形貌测量系统的图像照度质量评价方法 |
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| 引用本文： | 赵博华,王伯雄,罗秀芝. 光切法形貌测量系统的图像照度质量评价方法[J]. 清华大学学报(自然科学版), 2011, 0(4): 448-451 |
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| 作者姓名： | 赵博华 王伯雄 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： | 评价基于光切法的三维形貌测量系统采集图像的质量,有助于测量过程中提高光刀条纹中心的提取精度,或在系统研制过程中给出软硬件参数调整的方向。该文从图像照度的角度,提出一种基于平均归一化灰度值指标的图像质量评价方法。建立了被测范围照度与图像平均归一化灰度值的对应关系。在理想光照条件下采集光刀图像,得到其平均归一化灰度值的分布...
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| 关 键 词： | 光切法 照度 图像质量 |
Illumination quality evaluation method for images sampled by a 3-D measuring system based on light-sectioning |
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| ZHAO Bohua,WANG Boxiong,LUO Xiuzhi. Illumination quality evaluation method for images sampled by a 3-D measuring system based on light-sectioning[J]. Journal of Tsinghua University(Science and Technology), 2011, 0(4): 448-451 |
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| Authors: | ZHAO Bohua WANG Boxiong LUO Xiuzhi |
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| Affiliation: | ZHAO Bohua,WANG Boxiong,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 laser stripe center extraction accuracy can be increased using the quality evaluation method for images sampled by a 3-D profile measurement system based on light-sectioning with the system hardware and software parameters properly adjusted.An image quality evaluation method with respect to the image illumination was developed using the mean value of normalized gray-scale indicators,with the corresponding relation then established between the illumination of the measured area and the mean value of the i... |
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| Keywords: | light-sectioning illumination image quality |
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