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模板法测量图像传感器调制传递函数方法研究
引用本文:鲁进,陈伟民,岑军波.模板法测量图像传感器调制传递函数方法研究[J].光子学报,2005,34(10):1565-1568.
作者姓名:鲁进  陈伟民  岑军波
作者单位:重庆大学光电工程学院,重庆400044
摘    要:在干涉条纹投射法测量的基础上,提出了利用正弦模板法测量图像传感器调制传递函数的新方法.通过将一定空间频率的正弦模板直接投射在图像传感器上,获得了同频率光强呈正弦分布的图像,通过计算求出图像传感器的调制传递函数.讨论了其具体实现方法,并用空间频率为50l/mm的计量光栅做了近似实验,采用了相应的数据处理方法,获得了较为满意的调制传递系数.

关 键 词:调制传递函数  图像传感器  正弦模板法  干涉条纹投射法
收稿时间:2004-08-26
修稿时间:2004年8月26日

Measuring Modulation Transfer Function with Mask for Imaging Sensor
Institution:Department of Optoelectronic Engineering, Chongqing University, Chongqing 400044
Abstract:Modulation transfer function is a powermt tool to evaluate the imaging performance of optics system. In order to expediently evaluate imaging quality of imaging sensor,a new method using sine mask to measure modulation transfer function is presented, which is based on the interferential fringe measurement method. The sine pattern generated by sine mask is directly projected on the imaging sensor, and the sine image is achieved. Then the modulation transfer function can be calculated. The approximate experiment is carried out, making use of rectangular grating which spatial frequency is 251/mm. The approximate modulation transfer coefficient is obtained with the corresponding data processing technology. The result indicates that such method is agreeable.
Keywords:Modulation transfer function ~ Imaging sensor ~ Sine template measurement~Interferential fringemeasurement
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