焦距标度数学模型的建立  

Foundation of Mathematical Model on Focus Measure

作　　者：徐定杰 王晓溪[1] 王武义[1] 陈健翼 

机构地区：[1]哈尔滨工业大学自动控制系

出　　处：《传感器技术》1998年第4期33-35,38,共4页Journal of Transducer Technology

摘　　要：利用近轴几何光学模型推导出焦距标度，这些焦距标度都具有良好的单调性和单峰性。实验证明了三个焦距标度的正确性，并对三个焦距标度进行了对比。The focus measures are drived from the paraxial geometric optics model. All these focus measures have good monotonicity and unimodality. Three focus measures are proved to be correct and compared by experiments.

关 键 词：调焦技术 焦距标度 点传播函数 CCD图像传感器 

分 类 号：TH741[机械工程—光学工程] TP391.41[机械工程—仪器科学与技术]