An Autofocus Algorithm Study Based on Image Edge
QIU Xiao-guang, CHEN Guo-jin (School of Mechatronics Engineering, Hangzhou Dianzi University, Hangzhou Zhejiang 310018,China)
An novel autofocus algorithm is proposed. The algorithm involves edge extraction technology and extremum locating technology. The edge extraction is implemented by a 2D minimum isotropic wavelet filter, and the extremum locating is performed by energy function of edge feature image, namely searching the maximum energy image in a sequence of edge feature images which be obtained in the course of the focusing. Some experimental results are given in this paper.
【CateGory Index】： TB874