CAJ | 학술논문

随着红外焦平面阵列技术的发展，凝视红外成像系统在很多领域得到了大量的应用，在这些应用中，非均匀性噪声及其校正方法是人们主要关注的一个问题。为了解决这个问题，从凝视红外成像系统非均匀性噪声的来源和频域特性出发，综合考虑了当前几种典型的基于定标和基于场景的非均匀校正算法的优缺点，结合盲元检测和补偿算法，提出了一种联合非均匀校正算法，并进行了实验验证。实验结果表明，该算法能够较好地解决成像系统非均匀性噪声随时间和工作环境漂移的问题，又能够保持较高的精度和收敛速度，具有较大的工程应用价值。
수착홍외초평면진렬기술적발전，응시홍외성상계통재흔다영역득도료대량적응용，재저사응용중，비균균성조성급기교정방법시인문주요관주적일개문제。위료해결저개문제，종응시홍외성상계통비균균성조성적래원화빈역특성출발，종합고필료당전궤충전형적기우정표화기우장경적비균균교정산법적우결점，결합맹원검측화보상산법，제출료일충연합비균균교정산법，병진행료실험험증。실험결과표명，해산법능구교호지해결성상계통비균균성조성수시간화공작배경표이적문제，우능구보지교고적정도화수렴속도，구유교대적공정응용개치。
With the development of IRFPA techniques, IR staring imaging system has been applied in more and more fields. In these applications, the residual non-uniformity and the non-uniformity correction (NUC) algorithms of the output IR images are of major concern. In order to resolve this problem, the non- uniformity sources and their characteristics in spatial frequency domain were studied firstly in this paper, and then the advantages and the disadvantages of both Calibration-based and Scene-based NUC algorithms were taken into account, and finally a combined non-uniformity correction algorithm including Blind-pixel Detection and Compensation was put forward to implement the non-uniformity correction, and the experiments results were given as well. The results shows that the combined non-uniformity correction algorithm can prevent the RNU to increase with the changes of time and working environments well, and has excellent performances in NUC technical applications.