红外弱小目标背景抑制中的二维空域廓线法
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摘要
为了实现天基红外遥感图像中的弱小目标检测,抑制复杂的结构背景,提出了二维空域廓线法。算法以一维时域廓线目标检测理论为基础,将其扩展到二维空域,应用于单帧目标检测。采用二维空域廓线可以获得背景估计,用原始图像减去背景图像可获得包含目标的前景图像。将本文算法与现有的单帧目标检测算法相比,可获得更大的ROC曲线面积,表明提出算法优于同类算法。
To successfully detect dim point targets in space-based infrared remote sensing images while suppressing complex structural backgrounds, a two-dimensional spatial profile method is proposed. The algorithm extends the one-dimensional temporal profile target detection theory to two-dimensional space and applies it to single-frame target detection. The estimated background can be obtained from the two-dimensional spatial profile, after which the foreground image containing the target can be obtained by subtracting the background image from the original image. Compared with the existing single-frame target detection algorithms, the proposed algorithm can obtain a larger ROC curve area, which indicates that two-dimensional spatial profile algorithm outperforms the existing algorithms.
To successfully detect dim point targets in space-based infrared remote sensing images while suppressing complex structural backgrounds, a two-dimensional spatial profile method is proposed. The algorithm extends the one-dimensional temporal profile target detection theory to two-dimensional space and applies it to single-frame target detection. The estimated background can be obtained from the two-dimensional spatial profile, after which the foreground image containing the target can be obtained by subtracting the background image from the original image. Compared with the existing single-frame target detection algorithms, the proposed algorithm can obtain a larger ROC curve area, which indicates that two-dimensional spatial profile algorithm outperforms the existing algorithms.
引文
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[12]董维科,张建奇,邵晓鹏,等.检测红外弱小目标的对比滤波时域廓线算法[J].西安电子科技大学学报:自然科学版,2014,41(1):13-17.DONG Weike,ZAHNG Jianqi,SHAO Xiaopeng,et al.Temporal profile algorithm based on comparison filtering for detection of the infrared dim small target[J].Journal of Xidian University,2014,41(1):13-17.
[13]YANG Changcai,MA Jiayi,et al.Directional support value of Gaussian transformation for infrared small target detection[J].Applied Optics,2015,54(9):2255-2265.
[14]Jung Y S,Song T L.Aerial-target detection using the recursive temporal profile and spatiotemporal gradient pattern in infrared image sequences[J].Optical Engineering,2012,51(6):066401.
[2]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,2016,369:548-563.
[3]胡涛涛,樊祥,马东辉,等.基于时空域融合的红外弱小目标检测算法[J].弹箭与制导学报,2011,31(2):225-227.HU Taotao,FAN X,MA Donghui,et al.Temporal-spatial fusion algorithm for small infrared target detection[J].Journal of Projectiles Rockets Missiles&Guidance,2011,31(2):225-227.
[4]孟祥龙,张伟,丛明煜,等.天基红外图像的点目标检测[J].光学精密工程,2010,18(9):2094-2100.MENG Xianglong,ZHANG Wei,CONG Mingyu,et al.Detection of point targets in space-based infrared images[J].Optics and Precision Engineering,2010,18(9):2094-2100.
[5]QI S,MING D,MA J,et al.Robust method for infrared small-target detection based on boolean map visual theory[J].Infrared Phys.Technol.2014,53(18):3929-3940
[6]YANG C,MA J,ZHANG M,et al.Multiscale facet model for infrared small target detection[J].Infrared Phys.Technol.,2014,67:202-209.
[7]Deshpande S,Er M H,Venkateswarlu R,et al.Maxmean and max-median filters for detection of small-targets[C]//Proc.of SPIE,1999,3809:74-83.
[8]QI S,MA J,LI H,et al.Infrared small target enhancement via phase spectrum of quaternion Fourier transform[J].Infrared Phys.Technol.,2014,62:50-58.
[9]荣生辉,刘刚,周慧鑫,等.基于改进的剪切波变换和引导滤波的红外弱小目标背景抑制方法[J].光子学报,2015,44(2):68-73.RONG Shenghui,LIU Gang,ZHOU Huixin,et al.Infrared dim and small target background suppression based on the improved shearlet transform and the guide filter[J].Acta Photonica Sinica,2015,44(2):68-73.
[10]杨林娜,安玮,林再平,等.基于空间距离改进的视觉显著性弱小目标检测[J].光学学报,2015,35(7):0715004.YANG Linna,AN Wei,LIN Zaiping,et al.Small target detection based on visual saliency improved by spatial distance[J].Acta Optica Sinica,2015,35(7):0715004.
[11]Kim S,Sun S G,Kim K T.Highly efficient supersonic small infrared target detection using temporal contrast filter[J].Electronics Letters,2014,50:81-93.
[12]董维科,张建奇,邵晓鹏,等.检测红外弱小目标的对比滤波时域廓线算法[J].西安电子科技大学学报:自然科学版,2014,41(1):13-17.DONG Weike,ZAHNG Jianqi,SHAO Xiaopeng,et al.Temporal profile algorithm based on comparison filtering for detection of the infrared dim small target[J].Journal of Xidian University,2014,41(1):13-17.
[13]YANG Changcai,MA Jiayi,et al.Directional support value of Gaussian transformation for infrared small target detection[J].Applied Optics,2015,54(9):2255-2265.
[14]Jung Y S,Song T L.Aerial-target detection using the recursive temporal profile and spatiotemporal gradient pattern in infrared image sequences[J].Optical Engineering,2012,51(6):066401.