| 基于近红外图像质量评价的静脉图像采集系统 |
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| 引用本文： | 崔建江,王立辉,陈大力,潘峰.基于近红外图像质量评价的静脉图像采集系统[J].东北大学学报(自然科学版),2009,30(8):1099-1102. |
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| 作者姓名： | 崔建江 王立辉 陈大力 潘峰 |
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| 作者单位： | 东北大学,信息科学与工程学院,辽宁,沈阳,110004 |
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| 摘 要： | 以手背静脉图像采集系统作为研究对象,根据图像采集对后续图像处理的影响,设计了红外光源调控装置.研究了近红外成像所生成的灰度图像的评价方法,分析了基于信息容量、能量谱-熵、伪信噪比的评价方法,以及每种方法所适用的场合,建立了基于静脉图像质量的评价方法.研究了采集图像与光强之间的关系,推导出图像质量与LED电流之间的关系,从而获得最优的光源控制调制信号.将图像质量评价结果应用到光强控制,设计了集红外采集、红外图像质量评价和红外光源调控于一体的光源装置,采集到的静脉图像符合后续处理的需要.
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| 关 键 词： | 近红外 静脉识别 图像质量评价 信息容量 自适应 |
On the Vein Image Capturing System Based on Near-Infrared Image Quality Assessment |
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| CUI Jian-jiang,WANG Li-hui,CHEN Da-li,PAN Feng.On the Vein Image Capturing System Based on Near-Infrared Image Quality Assessment[J].Journal of Northeastern University(Natural Science),2009,30(8):1099-1102. |
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| Authors: | CUI Jian-jiang WANG Li-hui CHEN Da-li PAN Feng |
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| Institution: | CUI Jian-jiang,WANG Li-hui,CHEN Da-li,PAN Feng(School of Information Science & Engineering,Northeastern University,Shenyang 110004,China.) |
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| Abstract: | According to the effect of image capturing on image processing,a near-infrared source control system was designed for the hand vein image capturing system.The different assessment methods for the gray-scale images resulting from nearinfrared imagery and their different applications were discussed,based on the information capacity,energy spectrum-entropy and false signal-to-noise ratio.A method was therefore proposed to assess the vein images quality,with which the relationship between image captured and lig... |
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| Keywords: | near-infrared vein recognition image quality assessment information capacity adaptive |
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