一种基于大视场红外图像的非均匀性校正算法  

Non-uniformity correction for infrared image with large field of view

作　　者：倪云龙[1] 郝秋来[1] 于繁迪[1] 

机构地区：[1]华北光电技术研究所,北京100015

出　　处：《激光与红外》2013年第3期344-347,共4页Laser & Infrared

摘　　要：研究了行扫体制热像仪获取的大视场红外图像非均匀性校正的处理方法。首先分析了大视场下全局校正算法的局限性,然后提出了对大视场图像分块处理的想法,通过分块图像获取补偿参数来对非均匀性进行校正。最后通过实验证明了该算法能够在单帧情况下有效弱化条纹噪声,改善图像非均匀性。We have studied the Non-uniformity correction （NUC） algorithm for infrared image with large field of view （FOV）. Firstly, we analyze the limitation of the global correction method for large FOV IR images, then we propose the idea of block processing for such images, and obtain the offset parameters to correct the non-uniformity. Finally, we simulate to prove this method can diminish the fixed-pattern noise in single frame situation. It can improve the non-uniformity of the images effectively.

关 键 词：红外图像 非均匀性校正 分块 大视场 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]