摘要
研究并实现了一种适用于红外热像仪实际工程应用的自动调焦技术。该技术采用轴向移动变焦方式,选取拉普拉斯(Laplacian)算子作为评价函数模板,以优化的爬山搜索法进行峰值判断,同时结合PID的控制方法驱动调焦电机,最终实现了稳定、快速、精确的自动对焦,并充分考虑了对实际应用中场景目标的适用性。本技术以FPGA为核心处理器,采用SoPC(system on programmable chip,可编程片上系统)的处理架构实现算法,成功应用于工程项目中。
An autofocus technology for infrared camera is researched and applied to practical project. To realize the automatic focusing, the method uses axial movement of the zoom lens, chooses Laplacian operator as evaluation func tion, uses optimized mountain climbsearching algorithm to judge the peak, uses PID control method to drive focus mo tor. And it gets an excellent result. The technology uses FPGA as the core processor and adopts the architecture of SoPC to realize the autofocus function. The study is engineering oriented and the autofocus system has been used in practical application.
出处
《激光与红外》
CAS
CSCD
北大核心
2012年第10期1145-1148,共4页
Laser & Infrared
作者简介
包琳（1984一），男，在读研究生，主要从事实时红外图像处理及相关方面的研究工作。E-mail：b22005307@126．com
