摘要
设计了一种基于940 nm红外光主动照明的抗干扰成像系统,克服了环境光的变化对生物特征识别系统采集目标图像数据的一致性带来的影响,对其系统结构组成和工作原理进行了阐述.通过实验分析表明,该系统所成图像具有高信噪比和数据一致性,可有效提高图像识别的准确度和识别率,对生物特征识别技术的应用拓展具有重要意义.
An imaging system based on 940 nm active infrared illumination is designed to eliminate the influences of the changing of environmental brightness on the conformity of image data collected by biological characteristic identification system, and the configuration and working principle of the system are described. The analysis and experiments show that the system has characteristics of high signal-to-noise ratio and extraordinary con- fortuity, and also can improve the image recognition accuracy and the probability effectively.
出处
《光电技术应用》
2009年第1期18-21,32,共5页
Electro-Optic Technology Application
关键词
主动红外照明
均匀照明
抗干扰
生物特征识别
active infrared illumination
uniform illumination
anti-interference
biological characteristic identification
