基于二维直方图变换的红外烟幕遮蔽下目标图像增强  

Target Image Enhancement under the Condition of Infrared Smoke Screen Based on Two-dimension Histogram Transformation

作　　者：岳贤军[1] 沈学华 顾永菊[2] 

机构地区：[1]南通大学,江苏南通226007 [2]南通市物价局信息中心,江苏南通226001

出　　处：《南通大学学报（自然科学版）》2005年第1期69-72,共4页Journal of Nantong University(Natural Science Edition)　

基　　金：原南通工学院自然科学基金资助项目(院自200339)

摘　　要：根据红外烟幕遮蔽条件下目标热像的特征,就利用一维直方图均衡化增强方法的对比度和清晰度不高以及损失图像细节的缺点,提出了一种基于二维直方图变换的目标热像增强方法;该方法充分利用了热像的高相关性特点,得到了较好的对比度和清晰度,保留了图像细节。采用该方法可以有效地改善目标红外像,使烟幕遮蔽目标的帧数减少10帧以上。Based on the characteristic of the target thermal image under the condition of infrared smoke screen,this paper preˉsents anewtargetenhancementmethod based ontwo-dimensionhistogramtransformationinthe lightofthe lowcontrastand definiˉtion of one-dimension histogramequalization as well as the defects of some lost image minutiae.This method makes full use of the high correlation of the thermal image,enhances the contrast and definition of the target image,reserves the minutiae of the target image,improves the quality of the target image,decreases more than ten frames of target being covered by infrared smoke screen,and evidently decreases the time of being covered by infrared smoke screen.

关 键 词：二维直方图 烟幕遮蔽 图像增强 红外 直方图均衡化 图像细节 增强方法 充分利用 清晰度 对比度 热像 相关性 帧 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] U674.703.3[自动化与计算机技术—计算机科学与技术]