| 夏克-哈特曼阵列光斑质心探测误差比较 |
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| 引用本文： | 景文博,段锦,王晓曼,赵思,徐皓,姜会林.夏克-哈特曼阵列光斑质心探测误差比较[J].吉林大学学报(理学版),2010,48(6):1013-1017. |
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| 作者姓名： | 景文博 段锦 王晓曼 赵思 徐皓 姜会林 |
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| 作者单位： | 1. 长春理工大学 光电工程学院, 长春 130022； 2. 长春理工大学 电子信息工程学院, 长春 130022 |
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| 基金项目： | 国家自然科学基金，国防科工局基础预研项目 |
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| 摘 要： | 在相同信噪比的情况下,通过数值仿真对夏克-哈特曼波前传感器阵列光斑的4种质心探测算法进行质心探测误差对比.仿真结果表明,强加权质心算法具有较好的适用性,该算法在信噪比小于5时,质心探测误差低于0.5像素.在对阵列光斑进行质心探测时,同时考虑质心探测误差和探测速率,有效提高了质心探测的准确性和快速性.
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| 关 键 词： | 夏克-哈特曼波前传感器 质心算法 质心探测误差 信噪比 时间复杂度 |
| 收稿时间： | 2010-03-11 |
Comparison of Shack-Hartmann Array Spot Centroid Detection Errors |
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| JING Wen-bo,DUAN Jin,WANG Xiao-man,ZHAO Si,XU Hao,JIANG Hui-lin.Comparison of Shack-Hartmann Array Spot Centroid Detection Errors[J].Journal of Jilin University: Sci Ed,2010,48(6):1013-1017. |
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| Authors: | JING Wen-bo DUAN Jin WANG Xiao-man ZHAO Si XU Hao JIANG Hui-lin |
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| Institution: | 1. School of Photo Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China;2. School of Electronic and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China |
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| Abstract: | The centroid detection errors of four methods of centroid detection algorithm about Shack Hartmann array spots were compared at the same SNR, during which not only the centroid detection error but also the velocity of detection was taken into account. The experiment results indicate that IWCa has less detection error (CEE<0.5) although the SNR is lower than 5 and the velocity is also great. In consideration of centroid detection error and detection rate, centroid detection accuracy and rapidity were effectively improved. |
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| Keywords: | Shack Hartmann wavefront sensor centroid algorithm centroid detection error signal noise ratio time complexity |
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