地面背景的红外特性模型  

Infrared characteristic model of ground background

作　　者：王玥[1] 卢秋实[1] 叶青青[1] 

机构地区：[1]北京理工大学机电工程与控制实验室,北京100081

出　　处：《红外与激光工程》2010年第6期989-992,共4页Infrared and Laser Engineering

基　　金：国家部委预研项目(BQ0103)

摘　　要：针对景象匹配中实时红外基准图获取获取困难、精度受气象条件影响较大等问题,提出了一种关于地面背景表观温度的理论计算模型。确定影响模型精度的主要因素,通过对大量实验数据的比较分析,筛选其中关键数据并对模型主要影响因子的系数进行拟合。以道路、草坪为例进行特性分析和仿真计算对模型进行验证。计算结果表明:该模型可以反映此类背景表观温度的变化情况,实现了快速计算地面背景温度的目的,为实时红外基准图的仿真提供了理论基础和技术途径。To solve the problems in capturing the real time infrared reference image and improving the precision of the reference image that is susceptible by meteorology in scene matching,a theoretical computing model on apparent temperature of ground background was constructed.The main factors that affected the precision of the model were ascertained.By comparing and analyzing a mount of experimental data,some key data was filtrated and the coefficients of main factors were fitted.The characteristic analysis and computing with the road and grass were also accomplished to testify the model.The calculation results show that the model can reflect the changes of the apparent temperature of such background that mentioned above,and the quick computing of surface temperature is realized.It also provides the theoretical basis and method for the simulation of the real time infrared reference image.

关 键 词：红外特性 地面背景 景象匹配 拟合 

分 类 号：TN211[电子电信—物理电子学]