红外线列探测器闪元噪声分析与抑制方法

分析了闪元现象在红外扫描图像中的特点, 设计了基于时序多帧最大值投影的闪元检测与补偿方法.考虑到闪元仍然保留了一定的信息获取能力, 采用一维中值滤波的方法单独对闪元位置进行背景抑制, 对闪元补偿后的图像进行常规目标检测.实验验证表明, 经背景抑制后, 闪元位置平均目标信杂比可以达到常规位置的96%, 目标信息得到较好的保留.常规目标检测方法不再受到闪元噪声的干扰.

Abstract

In this paper, the characteristics of the flickering pixel phenomenon in the infrared scanning image are analyzed. The detection and compensation method of the flickering pixel based on the time series multi-frame maximum projection is designed. Considering that the flickering pixels still retain a part of the information acquisition ability, the one-dimensional median filter is used to suppress the background for the position where flickering pixels exist. Traditional methods of target detection are carried out for the image after flickering pixels compensated. Experiment results show that after background suppression, the target average signal to clutter ratio in the flickering pixel location can reach 96% of the normal position, and the target information is well preserved. The traditional method of target detection is no longer interfered by flickering noise.

参考文献

[1] SHI Yan, MAO Hai-Cen, ZHANG Tian-Xu, et al. New approach of IRFPA non-effective pixel discrimination based on pixel' s characteristics histogram analysis［J］. Journal of Infrared and Millimeter Waves,(石岩,毛海岑,张天序,等.一种新的基于特征直方图分解的红外焦平面阵列无效像元判别方法. 红外与毫米波学报) 2005, 24(2): 119-124.

[2] Gendreau K C, Mushotzky R, Fabian A C, et al. ASCA observations of the spectrum of the X-ray background［J］. Publications-Astronomical Society of Japan, 1995, 47(2):L5-L9.

[3] Gross W, Hierl T, Schulz M J. Correctability and long-term stability of infrared focal plane arrays［J］. Optical Engineering, 1999, 38(5):862-869.

[4] Ackerson K, Musante C, Gambino J, et al. Characterization of "blinking pixels" in CMOS image sensors［J］. Proc. IEEE/SEMI Adv. Semicond. Manuf. Conf. 2008:255-258.

[5] LENG Han-Bing, GONG Zhen-Dong, XIE Qing-Sheng, et al. Adaptive blind pixel detection and compensation for IRFPA based on fuzzy median filter［J］. Infrared and Laser Engineering, (冷寒冰,宫振东,谢庆胜, 等. 基于模糊中值的IRFPA自适应盲元检测与补偿. 红外与激光工程)2015, 44(3):821-826.

[6] LI Xue,SHAO Xiu-Mei,TANG Heng-Jing, et al. Inoperable pixels of 256×1 element linear In GaAs near-infrared focal plane arrays.［J］. Journal of Infrared and Millimeter Waves,(李雪,邵秀梅,唐恒敬,等. 近红外256x1元InGaAs焦平面探测器无效像元研究. 红外与毫米波学报)2011,30(5):409-411+438.

[7] LI Ling-Xiao,FENG Hua-Jun,ZHAO Ju-Feng, et al. Adaptive and fast blind pixel correction of IRFPA.［J］. Optics and Precision Engineering.(李凌霄,冯华君,赵巨峰,等.红外焦平面阵列的盲元自适应快速校正. 光学精密工程) 2017,25(04):477-486.

[8] CUI Kun,CHEN Fan-Sheng,SU Xiao-Feng, et al. A fast screening method of pixels with unstable response rate in IRFPA.［J］. Infrared Technology. (崔坤,陈凡胜,苏晓锋,等. 红外焦平面探测器响应率不稳定像元快速筛选方法. 红外技术)2017,39(02):130-135.

[9] GUO Liang, LI Dong-Bing, YANG Wei, et al. Alternative method of linear TDI infrared detector blind pixel.［J］. Laser and Infrared.(郭亮,李冬冰,杨微,等. 线列TDI型红外探测器组件坏元替代方法. 激光与红外) 2015,45(7):809-813.

[10] ZHENG Wei. Research on image enhancement algorithm based on line array infrared detector.［J］. Laser and Infrared. (郑为. 基于线列红外探测器的图像增强算法研究. 激光与红外)2015,45(01):84-87.

[11] ZHOU Da-Biao, WANG De-Jiang, HUO Li-Jun, et al. Nonuniformity correction method based on gradient scenes.［J］. Acta Optica Sinica. (周达标,王德江,霍丽君,等. 基于梯度场景的非均匀校正方法. 光学学报)2017,37(05):346-355.

[12] LENG Han-Bing, YI Bo, XIE Qing-Sheng. et al. Adaptive nonuniformity correction for infrared images based on temporal moment matching.［J］. Acta Optica Sinica. (冷寒冰,易波,谢庆胜,等. 基于时域矩匹配的红外图像自适应非均匀性校正.光学学报)2015,35(04):123-128.

[13] QIN Yan, DENG Ru-Ru, HE Ying-Qing, et al. Piece-wise linear dynamic moment matching destriping. Journal of Image and Graphics.( 秦雁,邓孺孺,何颖清,等. 分段线性动态矩匹配条带去除.中国图象图形学报) 2012,17(11):1444-1452.

[14] Li Y, Zhang Y, Yu J G, et al. A novel spatio-temporal saliency approach for robust dim moving target detection from airborne infrared image sequences［J］. Information Sciences, 2016, 369(C):548-563.

[15] Samson V, Champagnat F, Giovannelli J F. Point target detection and subpixel position estimation in optical imagery.［J］. Applied Optics, 2004, 43(2):257-63.

[16] Novak L M, Halversen S D, Owirka G, et al. Effects of polarization and resolution on SAR ATR［J］. IEEE Transactions on Aerospace & Electronic Systems, 1997, 33(1):102-116.

刘高睿, 孙胜利, 林长青, 吕凭乐. 红外线列探测器闪元噪声分析与抑制方法[J]. 红外与毫米波学报, 2018, 37(4): 421. LIU Gao-Rui, SUN Sheng-Li, LIN Chang-Qing, LYU Ping-Yue. Analysis and suppression method of flickering pixel noise in images of infrared linear detector[J]. Journal of Infrared and Millimeter Waves, 2018, 37(4): 421.

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