摘要
在天文望远镜上应用自动调焦技术,可以提高调焦的自动化程度和效率,改善调焦精度和成像清晰度,避免对操作人员调焦经验的依赖。由于天文望远镜观测到的天体图像细节较少,不适合使用照相机的自动调焦算法。本文提出了一种新的适用于天体目标观测的离焦判据。
The automatic focussing （AF） applied in astronomical telescope is helpful for enhancing automatization and efficiency, improving focusing precision and quality, avoiding dependency on the experience of operator. Due to the image of an object＇s having less detail than scenery, those arithmetics used in camera AF system are not suitable for astronomical telescope AF system. A new evaluation function of image definition which is suitable for object is proposed in the paper.
出处
《天文研究与技术》
CSCD
北大核心
2008年第3期294-298,共5页
Astronomical Research & Technology
