文献详情
IR characteristic simulation of city scenes based on radiosity model
文献类型会议
作者Xiong, Xixian[1];Zhou, Fugen[2];Bai, Xiangzhi[3];Yu, Xiyu[4]
机构
2013
会议论文集INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTI
通讯作者Xiong, XX (reprint author), Beihang Univ, Image Proc Ctr, Beijing 100191, Peoples R China.
会议名称5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications
来源信息年:2013  卷:8907  
关键词thermal infrared; radiosity; temperature; three-dimensional
摘要Reliable modeling for thermal infrared (IR) signatures of real-world city scenes is required for signature management of civil and military platforms. Traditional modeling methods generally assume that scene objects are individual entities during the physical processes occurring in infrared range. However, in reality, the physical scene involves convective and conductive interactions between objects as well as the radiations interactions between objects. A method based on radiosity model describes these complex effects. It has been developed to enable an accurate simulation for the radiance distribution of the city scenes. Firstly, the physical processes affecting the IR characteristic of city scenes were described. Secondly, heat balance equations were formed on the basis of combining the atmospheric conditions, shadow maps and the geometry of scene. Finally, finite difference method was used to calculate the kinetic temperature of object surface. A radiosity model was introduced to describe the scattering effect of radiation between surface elements in the scene. By the synthesis of objects radiance distribution in infrared range, we could obtain the IR characteristic of scene. Real infrared images and model predictions were shown and compared. The results demonstrate that this method can realistically simulate the IR characteristic of city scenes. It effectively displays the infrared shadow effects and the radiation interactions between objects in city scenes.
收录情况EI(20141317510136)  CPCI-S(WOS:000325423700069)  
所属部门宇航学院
DOI号10.1117/12.2032935
会议地点Beijing, PEOPLES R CHINA
会议开始日期2013-01-01
被引频次11
语言外文
人气指数232
浏览次数232
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