广东工业大学学报 ›› 2010, Vol. 27 ›› Issue (3): 51-55.

• 综合研究 • 上一篇    下一篇

基于多幅图像的有效点扩散函数的高精度测量

  

  1. 广东工业大学物理与光电工程学院,广东广州510006
  • 出版日期:2010-09-25 发布日期:2010-09-25
  • 作者简介:王婷婷(1983-),女,硕士研究生,主要研究方向为数字图像处理

High Precision M easurement Based on e-PSF of Multi-Image

  1. Faculty of Physics and Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510009,China
  • Online:2010-09-25 Published:2010-09-25

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.

关键词: 图像融合;有效点扩散函数;高精度测量

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.

Key words: Image fusion;e-PSF;High precision measurement

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