期刊文献+

复杂海面背景红外小目标自动检测方法 被引量:33

Automatic detection method of IR small target in complex sea background
原文传递
导出
摘要 采用维纳自适应滤波,抑制随机噪声和高斯噪声;利用Otus阈值法分割图像,确定海天线和目标潜在区;利用Top Hat算子进行形态滤波处理,抑制平缓变化背景并保留高亮度区的目标和强噪声;选择结构元素进行形态开运算,去掉细小的背景杂波干扰;针对远距离舰艇小目标总是出现在海天线附近以及红外目标灰度高于其邻域背景的特点,确定阈值即可分离出真正的目标。实验结果表明,该方法可以较好地抑制海浪、云层等背景的干扰,能有效检测复杂海面背景中的红外小目标。 The proposed approach adopts adaptive filter to suppress random noise and Gauss's noise so as to enhance the SNR. Then, Otus's threshold method is used to segment the image and locate the sea-sky-line, through which the target potential area can be determinated. A mathematical morphology filter, Top-Hat operator, is employed to execute filtering to restraint the background contribution and maintain the small target in high brightness area. By choosing proper structural element, an open filter is executed to discard small false alarms. Eventually, the real small target can be segmented through searching maximal value in the target potential area nearby the sea-sky-line and assigning threshold. The experimental results show that the method can reject the clutter caused by waves and clouds and effectively detect and segment IR small target in the complicated sea background.
出处 《红外与激光工程》 EI CSCD 北大核心 2003年第6期590-593,604,共5页 Infrared and Laser Engineering
基金 中国科学院国防科技创新基金支持项目(CXJJ 65)
关键词 红外小目标 数学形态学 目标检测 图像分割 海面背景 IR small target Mathematical morphology Target detection Image segmentation Sea background
  • 相关文献

参考文献5

二级参考文献20

  • 1彭嘉雄,彭铁.弱目标检测的图像流法[J].红外与激光工程,1996,25(4):34-40. 被引量:28
  • 2周杰,彭嘉雄,丁明跃,刘小平.基于小波变换的运动点目标检测方法[J].宇航学报,1996,17(3):20-24. 被引量:9
  • 3Castleman K R.数字图像处理[M].北京:电子工业出版社,2000..
  • 4章毓晋.图像工程(上)--图像处理和分析[M].北京:清华大学出版社,2000.1-46,81-106.
  • 5Jong Chih-chien, Li-CC. Wavelet-based line detection in gray-scale images[A]. IEEE International Conference on System, Man, and Cybernetics[C]. 1997. 3670-3673.
  • 6Siddique-JI, Barner-KE. Wavelet-based multiresolution edge detec-tion utilizing gray level edge maps[A]. Proceedings International Conference on Image Processing[C]. 1998. 550-554.
  • 7Lee-Y, Kozaitis-SP. Improved wavelet-based muhiresolution edge detection in noisy images[A]. Proceedings of SPIE[C]. 1999,3716. 185-193.
  • 8杨福生.小波变换的工程分析与应用[M].北京:科学出版社,2001..
  • 9NIKHIL R PAL, SANKAR K PAL. A review on image segmentation techniques[J]. Pattern Recognition,1993,26(9):1277-1294.
  • 10刘文莉. 目标图像分割与检测的研究[D]. 西安:西安电子科技大学电子工程学院,1995.

共引文献79

同被引文献203

引证文献33

二级引证文献194

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部