求解CCD图像几何扭曲的初步结果
发布时间：2018-10-14 12:50
【摘要】：准确求解望远镜成像系统中视场的几何扭曲是高精度天体测量中的关键环节.借鉴哈勃空间望远镜几何扭曲求解的思想,提出并实施了一种简便、有效的方法.应用到云南天文台1米望远镜2011年4月2～3日观测疏散星团M67所得的72幅CCD图像表明:望远镜存在明显的几何扭曲效应,在视场角落最大扭曲～0.6pixel(～120mas).经扭曲改正后,视场中星象的定位精度有了明显提高.
[Abstract]:Accurately solving the geometric distortion of the field of view in the telescope imaging system is a key link in high precision astrometry. A simple and effective method for solving geometric distortion of Hubble Space Telescope is proposed and implemented. The 72 CCD images obtained from the 1-meter telescope of Yunnan Observatory from April 2 to 3, 2011 show that the telescope has obvious geometric distortion effect and the largest distortion ~ 0.6pixel (~ 120mas) in the corner of the field of view. After the distortion correction, the positioning accuracy of the stars in the field of view has been improved obviously.
【作者单位】： 暨南大学计算机科学系;暨南大学天体测量、动力学与空间科学中法联合实验室;光电信息与传感技术广东普通高校重点实验室(暨南大学);
【基金】：国家自然科学基金(批准号:10973007) 暨南大学中央高校基本科研业务费专项资金资助项目
【分类号】：P12
本文编号：2270504
[Abstract]:Accurately solving the geometric distortion of the field of view in the telescope imaging system is a key link in high precision astrometry. A simple and effective method for solving geometric distortion of Hubble Space Telescope is proposed and implemented. The 72 CCD images obtained from the 1-meter telescope of Yunnan Observatory from April 2 to 3, 2011 show that the telescope has obvious geometric distortion effect and the largest distortion ~ 0.6pixel (~ 120mas) in the corner of the field of view. After the distortion correction, the positioning accuracy of the stars in the field of view has been improved obviously.
【作者单位】： 暨南大学计算机科学系;暨南大学天体测量、动力学与空间科学中法联合实验室;光电信息与传感技术广东普通高校重点实验室(暨南大学);
【基金】：国家自然科学基金(批准号:10973007) 暨南大学中央高校基本科研业务费专项资金资助项目
【分类号】：P12
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