全向激光告警系统中SWIRFPA的盲元补偿算法  

Blind-pixel compensation algorithm for SWIRFPA in omni-directional laser warning system

作　　者：黄富瑜[1] 何永强[1] 应家驹[1] 严世华[1] 董红军[1] 

机构地区：[1]军械工程学院光学与电子工程系,河北石家庄050003

出　　处：《应用光学》2011年第1期161-164,共4页Journal of Applied Optics

摘　　要：针对全向激光告警系统中SWIRFPA的盲元补偿问题,提出一种基于邻域灰度特性的加权插值盲元补偿算法。阐述该算法的基本思想和原理,根据盲元邻域灰度值的分布情况,赋予每个邻域像元与其灰度值相关的权重,进而完成盲元补偿。从主客观2个角度对补偿效果进行评价。结果表明:与传统的邻域平均法和中值滤波法相比,加权插值盲元补偿算法对全向激光告警系统中SWIRFPA的盲元补偿效果最好,不仅使盲元补偿值与其邻域偏差最小,而且减小了盲元对系统探测的影响,有效提高了系统性能。In order to implement blind-pixel compensation for IRFPA in omni-directional laser warning system,a new weighted interpolation algorithm based on neighborhood grey character is presented.The impact of blind-pixel on the system was analyzed,the basic concept and principle of the algorithm were elaborated and analyzed,and the algorithm was verified by experimental simulation.Finally,the blind-pixel compensation result was evaluated subjectively and objectively.Compared with the conventional algorithms of neighborhood averaging and mid-value filter,the new algorithm is more suitable for the blind-pixel compensation of omni-directional laser warning system.The blind-pixel compensation offset of the new algorithm is smaller than those of the other two algorithms,and it reduces the impact of blind-pixel influence on the system,which can improve the system working performance effectively.

关 键 词：全向激光告警 盲元补偿 加权插值 SWIRFPA 

分 类 号：TN202[电子电信—物理电子学]