| 基于图像处理技术的光斑质心高精度测量 |
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| 引用本文： | 夏爱利,马彩文.基于图像处理技术的光斑质心高精度测量[J].光电子．激光,2011(10):1542-1545. |
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| 作者姓名： | 夏爱利 马彩文 |
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| 作者单位： | 中国科学院西安光学精密机械研究所；;中国科学院西安光学精密机械研究所； |
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| 基金项目： | 国家“863”计划资助项目(2008AA7080304) |
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| 摘 要： | 针对传统的光斑质心测量方法子孔径窗口内远离光斑的噪声对一阶矩质心算法的影响，本文提出一种利用图像处理技术提高光斑质心探测精度的新方法。在哈特曼-夏克（H-S）波前传感器测得的光斑阵列图像中，采用自适应阈值方法优化每个子孔径的探测窗口，使探测窗口和光斑分布区域最佳匹配；然后在探测窗口内，采用线性插值方法提高图像的分辨率。...
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| 关 键 词： | 自适应光学 哈特曼-夏克(H-S)波前传感器 光斑质心 图像处理技术 自适应阈值 线性插值 |
Measurement of focal spot centroid based on image processing |
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| XIA Ai-li and MA Cai-wen.Measurement of focal spot centroid based on image processing[J].Journal of Optoelectronics·laser,2011(10):1542-1545. |
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| Authors: | XIA Ai-li and MA Cai-wen |
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| Affiliation: | (Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi′an 710119,China) |
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| Abstract: | A new method for enhancing the detection accuracy of the centroid of focal spot is put forward based on the image procesing techniques.After the Hartmann-Shark(H-S) wavefront sensor gets a series of focal spot array images,the subaperture detection windows are optimized by the adaptive threshold method for the optimum matching between the detection windows and the corresponding focal spots distribution areas and then the linear interpolation is used in the detection windows for higher precision ... |
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| Keywords: | adaptive optics Hartmann-Shark(HS)wavefront sensor centroid of focal spot image processing technique adaptive threshold linear interpolation |
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