| 基于多幅图像的有效点扩散函数的高精度测量 |
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| 引用本文： | 王婷婷,苏成悦,王娴,周镇.基于多幅图像的有效点扩散函数的高精度测量[J].广东工业大学学报,2010,27(3):51-55. |
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| 作者姓名： | 王婷婷 苏成悦 王娴 周镇 |
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| 作者单位： | 广东工业大学物理与光电工程学院，广东广州510006 |
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| 摘 要： | 将图像融合以及高精度测量方法应用于天文图像处理，对图片进行处理得到有效点扩散函数，并将有效点扩散函数拟合星像，得到星体的位置与光度信息．结果表明， 方向平均定位精度为0．036 pixel，Y方向平均定位精度为0．O44 pixel，平均测光精度达到0．032 magnitude，测量结果验证了该算法的有效性．
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| 关 键 词： | 图像融合 有效点扩散函数 高精度测量 |
High Precision Measurement Based on e-PSF of Multi-Image |
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| Wang Ting-ting,Su Cheng-yue,Wang Xian,Zhou Zhen.High Precision Measurement Based on e-PSF of Multi-Image[J].Journal of Guangdong University of Technology,2010,27(3):51-55. |
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| Authors: | Wang Ting-ting Su Cheng-yue Wang Xian Zhou Zhen |
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| Affiliation: | Faculty of Physics and Optoelectronic Engineering，Guangdong University of Technology，Guangzhou 510009，China |
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| Abstract: | The image fusion as well as high-precision measurement method is applied to astronomical image processing，In processing the final image the efective point spread function can be obtained，and the star’S position and brightness information can be got by the e-PSF fitting astrology．The mean precision of x directions was 0．036 pixels，the mean precision of Y directions was 0．044 pixels，and the mean Photometry precision was 0．015magnitude．The measurement results verify the effectiveness of the algorithm． |
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| Keywords: | Image fusion e-PSF High precision measurement |
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