红外焦平面阵列非均匀校正算法的研究  

Research on the Algorithm for Nonuniformity Correction of Infrared Focal Plane

作　　者：徐田华[1] 赵亦工[1] 

机构地区：[1]西安电子科技大学模式识别与智能控制研究所,西安710071

出　　处：《遥测遥控》2004年第6期44-47,65,共5页Journal of Telemetry,Tracking and Command

基　　金：国家自然科学基金资助项目 (编号 69982 0 0 8)

摘　　要：为解决固定图案噪声污染的红外焦平面图像序列的非均匀校正问题 ,文中采用时域高通滤波算法完成固定图案噪声污染图像的预处理 ,给出固定图案噪声初值 ,并结合传统的红外焦平面迭代非均匀校正算法 ,有效地解决了较高强度固定图案噪声污染图像的非均匀校正问题。与采用黑体基准获取固定图案噪声初值的方法相比 ,该算法降低了成像系统的机械复杂性 ,提高了算法的应用范围。In order to solve nonuniformity correction of the images sequences corrupted by fixed pattern noise(FPN)in infrared focal plane arrays(IRFPA),the algorithm of temporal high pass filtering was adopted to finish the postprocessing of the images corrupted by FPN and give the initial value of FPN.Combining the traditional algorithm of iterative nonuniformity correction of IRFPA, the nonuniformity correction of noise image with high level FPN was solved efficiently.Compared with blackbody reference,this algorithm reduced the mechanical complexity of the image device,improved the application field.At last.the conclusions are demonstrated by the infrared image sequences.

关 键 词：红外焦平面 固定图案噪声 非均匀校正 

分 类 号：TN215[电子电信—物理电子学]