用图像采集卡实现CCD摄像机信噪比测试的方法  

A Test Method of CCD Camera Signal-to-Noise Based on Image Capture

作　　者：肖恒兵[1] 

机构地区：[1]中国船舶重工集团公司第七一七研究所,湖北武汉430073

出　　处：《电子质量》2008年第8期18-20,共3页Electronics Quality

摘　　要：介绍了用高精度图像采集卡实现CCD摄像机信噪比测试的方法,并对CCD摄像机视频信号噪声提取方法进行了研究,提出了基于视频帧内噪声均方根值信噪比的改进算法,采用该算法设计的测试系统经实验证明测量结果准确度高。In this paper,a method of SNR measuring for CCD camera with high precision image capture card is introduced,the noise abstracting method of CCD video signal is researched,improved arithmetic of SNR based on RMS of video frame noise is also presented,high precision of measure system with this method is proved by the experiment.

关 键 词：图像采集卡 CCD摄像机 信噪比 

分 类 号：TN948.41[电子电信—信号与信息处理]