摘要
介绍了机载遥感仪器定标的热辐射参考源系统,并给出了其传递函数,结合试验分析了热辐射参考源的温控特性。在获取海水表面温度场的热红外图像中出现了有规律的明暗条纹,经过分析找出了热红外图像中出现明暗条纹的原因是黑体板的温度变化造成的,并揭示出机上热辐射参考源的温度变化对图像的影响,针对这种影响提出了图像校正方法,经过该算法的处理,消除了图像中的明暗条纹,保证图像中的有效目标信号,图像质量得到了明显改善,验证了校正方法的可行性。
The model of plane black body of airborne remote sensing device is given in this paper,and test result of temperature comtrol indicates the temperature of plane black body vibrates periodically with errors. While getting the thermo infrared image of sea surface, light and shade stripe appears periodically in the image. With analysis in this paper, the cause of this phenomenon is the plane black body's temperature vibration. An algorithm is derived in this paper for image restoration. The stripe in the image is eliminated with this algorithm. The quality of the image is improved,and the aimed signal is available effectively.
出处
《激光与红外》
CAS
CSCD
北大核心
2005年第1期65-68,共4页
Laser & Infrared
关键词
图像恢复
热红外
遥感
温度控制
image restoration
thermo infrared
remote sensing
temperature control
