基于图像边缘点数的自动调焦算法研究  

Research on automatic focusing algorithm based on the sum of image edge points

作　　者：黄茹[1] 梁耀 周元哲[1] 

机构地区：[1]西安邮电学院计算机系,陕西西安710121 [2]中国移动通信集团陕西有限公司,陕西西安710063

出　　处：《西安邮电学院学报》2007年第5期73-75,86,共4页Journal of Xi'an Institute of Posts and Telecommunications

摘　　要：如何快速有效地实现调焦一直是高速测量电视中的焦点。本论文提出了一种基于数字图像处理方法的自动调焦系统,并给出了以图像边缘点数作为图像是否聚焦的判据函数,以及给出了自适应搜索步长的登山式自动调焦原理,对该系统进行了实验研究,并给出了实验结果以及实际的调焦效果图。The focus of High - speed Measurement TV is how to carry out focusing effectively and quickly. An automatic focusing system based on digital image processing is proposed. The sum of edge points of an image is used as the criterion function of whether the image is focused. The hill - climbing automatic focusing principle with adaptive searching step size is also given. The experiments are carried out with system and the results and the focused images are given.

关 键 词：自动调焦 边缘点数 自适应搜索步长 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]