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Point target detection based on nonlinear spatial-temporal filter in infrared image sequences and its analysis
Zhang, Wei; Gong, Jinnan; Hou, Qingyu; Bian, Chunjiang,; Zhang, W.
Department空间技术部
Source PublicationProceedings of SPIE - The International Society for Optical Engineering
2012
Language英语
ISSN0277-786X
ISBN9780819493132
AbstractA spatial-temporal detection target method is proposed to detect weak point target with slow velocity in infrared sequences evolving cloud clutter. Frist of all, a temporal filter for detecting point target called triple temporal filter (TTF) is introduced. Since theoretical analysis shows that TTF has a poor performance under temporal noise, a nonlinear spatial-temporal filter by neighbor pixels in prior and posterior frames ,which takes every possible target trace account to suppress noise before coming into recursion. Then TTF output by positive and inverse sequence order form nonlinear spatial-temporal filter fuse with liner principle for detecting weak target is put forward, which called bilateral TTF in this paper. Finally its performance is analysis. The results of experiment shows that compared to original TTF, the proposed method achieves a higher signal-to-clutter ratio gain, which is effectively detecting dim target when target signal-to clutter down to 3 or lower with a low moving velocity. © Copyright SPIE.; A spatial-temporal detection target method is proposed to detect weak point target with slow velocity in infrared sequences evolving cloud clutter. Frist of all, a temporal filter for detecting point target called triple temporal filter (TTF) is introduced. Since theoretical analysis shows that TTF has a poor performance under temporal noise, a nonlinear spatial-temporal filter by neighbor pixels in prior and posterior frames ,which takes every possible target trace account to suppress noise before coming into recursion. Then TTF output by positive and inverse sequence order form nonlinear spatial-temporal filter fuse with liner principle for detecting weak target is put forward, which called bilateral TTF in this paper. Finally its performance is analysis. The results of experiment shows that compared to original TTF, the proposed method achieves a higher signal-to-clutter ratio gain, which is effectively detecting dim target when target signal-to clutter down to 3 or lower with a low moving velocity. © Copyright SPIE.
Conference NameOptoelectronic Imaging and Multimedia Technology II
Conference DateNovember 5, 2012 - November 7, 2012
Conference PlaceBeijing, China
Indexed ByEI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2966
Collection空间技术部
Corresponding AuthorZhang, W.
Recommended Citation
GB/T 7714
Zhang, Wei,Gong, Jinnan,Hou, Qingyu,et al. Point target detection based on nonlinear spatial-temporal filter in infrared image sequences and its analysis[C]:SPIE, P.O. Box 10, Bellingham, WA 98227-0010, United States,2012.
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