基于时域高通滤波的非均匀性校正算法研究  

Research on the Adaptive Algorithm for Nonuniformity Correction of Infrared Focal Plane Array Based on Temporal High Pass Filter

作　　者：施长城[1] 张天序[1] 李洁珺[1] 刘慧娜[1] 袁雅婧[1] 周泱[1] 

机构地区：[1]华中科技大学图像识别与人工智能研究所,多谱信息处理技术国防科技重点实验室,武汉430074

出　　处：《计算机与数字工程》2007年第7期1-3,12,共4页Computer & Digital Engineering

基　　金：国家自然科学基金项目(编号:10577009)资助

摘　　要：实现红外焦平面阵列非均匀性自适应校正是红外探测系统研究中追求的重要目标,对提高红外探测系统的空间分辨率、温度分辨率、探测距离以及辐射量的正确度量具有重要意义。分析基于时域高通滤波的红外焦平面自适应非均匀校正算法的视觉神经机制以及滤波器的幅频特性。通过对实际红外图像的实验,提出正确选取时间常数是影响该校正方法最重要的因素。It was the most important goal for an infrared detecting system to realize adaptive nonuniformity correction of infrared focal plane array (IRFPA) which is also significant to improve spatial resolution, temperature resolution, detecting distance and radiometric accuracy. The visual neural mechanism and frequency characteristic of the temporal high pass filter nonuniformity correction technique for infrared focal plane array were studied. The experiments with real infrared image showed that the most important factor of this nonuniformity correction algorithm war the time constant.

关 键 词：红外焦平面阵列 非均匀性 自适应校正算法 时域高通滤波 

分 类 号：TP732.2[自动化与计算机技术—检测技术与自动化装置]