摘要
景深范围是摄像模块CCM(CMOS Camera Module,简称CCM)的重要性能指标,代表CCM清晰成像的物方距离范围,目前国内尚无CCM的景深范围的自动测量设备,通常只能根据理论计算进行粗略估计。本文研制的设备可以用于CCM的景深自动测试,是在"虚拟实距"设备的基础上,添加专用CHART和专用的测试调节程序,通过虚像模拟的方式精确地测量CCM的景深范围,测量景深范围达到0.5m-无穷远。
Depth of field is an important target of performance of CCM(CMOS Camera Module),represent the range of object can be clear imaging.Presently there isn t any type of automatic device to measure the depth of field of CCM,usually it can only cursory estimated by theoretically calculating.Based on the device dummy distance,added special CHART and measuring software,developed the device to measure depth of field of CCM.The depth range is from 0.5m to infinite.
出处
《长春理工大学学报(自然科学版)》
2009年第4期535-537,共3页
Journal of Changchun University of Science and Technology(Natural Science Edition)
基金
吉林省部产学研结合项目(东莞.2007A090302007)
关键词
摄像模块
景深
自动测试
虚拟实距
CMOS Camera Module
depth of field
automatically measure
dummy distance