摘要
为了满足望远镜跟踪系统的发展需求,研究了基于图像处理的自动对焦技术在望远镜跟踪系统中的应用。介绍了几种图像清晰度评价函数,包括梯度函数以及统计函数等,并通过计算机仿真和实验验证的方式分析了各种评价函数在此自动对焦系统中的应用和性能。研究结果表明自相关函数、能量梯度函数和Sobel函数都是有效的清晰度评价函数,其中自相关函数相对其他函数性能更加优越。
To satisfy the fast development of telescope system for tracking targets,the auto-focusing technology based on image processing for telescope tracking system had been researched.Several kinds of image definition evaluation function had been introduced here,which included gradient function and statistics function and so on,and then all functions had been analyzed through computer simulation and experiment validation to tell their application and capability in the auto-focusing system.In result of the research,autocorrelation function,energy gradient function and Sobel function is effective image definition criterion,and the autocorrelation function is better than the others.
出处
《微计算机信息》
2010年第7期59-61,共3页
Control & Automation
基金
国家863计划资助课题(项目保密)
关键词
自动对焦
清晰度评价函数
自相关函数
望远镜
Auto-focusing
image definition evaluation function
autocorrelation function
telescope
