显微镜下两层物体的快速自动对焦算法  

Fast auto-focusing algorithm of two-layer objects in microscopy

作　　者：轩波[1] 苗立刚[1] 彭思龙[1] 

机构地区：[1]中国科学院自动化研究所,北京100080

出　　处：《计算机应用》2007年第1期143-145,148,共4页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60272042)

摘　　要：针对显微镜下两层物体的大规模图像采集问题,提出了基于图像边缘和邻域预测快速自动对焦算法。通过提取成像主体的边缘区域作为对焦窗口,结合线性预测方法,实现了既保持上层成像目标清晰,又有效抑制下层背景干扰的自动对焦系统。实验表明该算法在对焦速度、对焦精度以及抵抗背景干扰方面有突出优点。Aiming at the problem of large-scale microscopy images acquisition of two-layer object, an auto-fecusing algorithm was proposed based on image edge and adjacent area forecasting. Using the edge area as focusing window and linear forecasting method, the system can acquire clear image of upper object with little interfererence of the background. The experimental results demonstrate that the proposed algorithm is superior in focusing speed, precision and capability of resisting background interference.

关 键 词：自动对焦 对焦窗口 边缘 图像分割 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TP301.6[自动化与计算机技术—计算机科学与技术]