摘要
基于梯度计算的评价函数在自动聚焦系统中应用广泛,函数形式变化多样,本文基于图像梯度计算的数学原理,通过MATLAB仿真分析,对比了常见梯度类评价函数的性能,总结了梯度类评价函数应用中结合系统成像质量控制算法性能的方法。
Image sharpness evaluation function based on gradient calculation is widely used in automatic focus system, and these fimctions vary in form. In this paper, starting from the mathematical principles of image gradient calculation, with simulation experiments under MATLAB, performance of common gradient class evaluation functions was compared and analyzed, and methods combining the characteristics of imaging system to control the performance of these algorithms are presented.
出处
《红外技术》
CSCD
北大核心
2016年第11期960-968,共9页
Infrared Technology
关键词
梯度算子
评价函数
数学原理
自动聚焦
MATLAB
gradient operator, evaluation function, mathematical principles, auto focus, MATLAB
