中波碲镉汞探测器次级盲元的量化及识别  

Quantitative Standards and Auto Recognition of Sub Bad Pixels on MW HgCdTe Detector

作　　者：刘世光 姚诚 张轶 李娟[1] 宁提[1] 孙浩[1] LIU Shi-guang;YAO Cheng;ZHANG Yi;LI Juan;NING Ti;SUN Hao(North China Research Institute of Electro-Optics,Beijing 100015,China;The 7th Military Representative Office of the Air Force Equipment Department in Beijing,Beijing 100086,China)

机构地区：[1]华北光电技术研究所,北京100015 [2]空装驻北京地区第七军事代表室,北京100086

出　　处：《红外》2022年第5期9-13,共5页Infrared

摘　　要：中波碲镉汞探测器是最常用的高性能制冷型红外焦平面探测器,在多个领域均有广泛应用。中波碲镉汞探测器在实际使用中有一类独立的像元,其电平值比周边像元略低一些,但不满足国标中的盲元判定标准,会影响在光电系统上的使用(称为次级盲元)。依靠人眼判断此类像元不仅耗费大量时间,而且不同人对次级盲元的判断标准不一。针对上述次级盲元不易判断的难题,通过分析人眼对次级盲元的判断过程,使用计算机模拟人的判断,量化了次级盲元的判断标准,并实现了自动识别和统计功能。与原有的人眼判断方式相比,该方法极大地提升了识别的准确度和效率。Middle-wave HgCdTe detectors are the most commonly used high-performance cooled infrared focal plane array(IRFPA) detectors,which are widely used in many fields.The middle-wave mercury cadmium telluride detector has a type of isolated pixel in actual use.It has a slightly lower voltage level than the surrounding pixels,but it does not meet the blind pixel judgment standard of the national standard,which will affect the use in photoelectric systems.We named them sub bad pixels.Relying on human eyes to judge such pixels not only takes a lot of time,but also different people have different judgment standards for sub bad pixels.Aiming at the difficulty of judging the sub bad pixels mentioned above,through analyzing the judgment process of the human eyes on the sub bad pixels,and using the computer to simulate the human judgment,the judgment standard of the sub bad pixels is quantified,and the automatic identification and statistical functions are realized.Compared with the original human eye judgment method,the accuracy and efficiency of recognition are greatly improved.

关 键 词：中波 碲镉汞 次级盲元 计算机模拟 

分 类 号：TN362[电子电信—物理电子学]