光学技术, 2013, 39 (2): 168, 网络出版: 2013-04-07
基于复杂地面背景序列图像的运动弱小目标检测
Detection of moving small target based on images in sequence of complicated surface background
复杂地面背景 运动弱小目标检测 最小二乘匹配 固定背景干扰抑制 Radon变换 complicated surface background small target detection LS match Top-Hat Top-Hat constant background noise suppress Radon transform
摘要
分析了复杂地面背景下序列图像检测弱小目标的困难, 研究了一种针对场景较复杂的运动弱小目标检测方法。首先将序列图像分割成等间隔的处理单元, 并利用最小二乘匹配进行坐标对齐, 然后使用Top-Hat算子处理图像并进行CFAR分割, 综合考虑处理单元中的每幅图像, 对固定背景干扰进行抑制, 最后根据运动弱小目标轨迹进行检测。进行了三组序列图像实验并绘制了ROC曲线, 证明该方法是一种有效的弱小运动目标检测方法。
Abstract
By analyzing the difficulty of detecting the small targets on complicated surface background in sequence, a detecting method is researched for moving small targets on complicated surface.An integrated detecting method is proposed.Firstly,images in sequence are divided into units constituted of the same frames.Its reference frame is unified using LS Matching.Then,images in sequence are processed by Top-Hat and segmented by CFAR.Considering every image in units, the constant background noise is suppressed. At last, the track of small targets is used for detecting.The validity of the proposed method is demonstrated by 3 experiment results and ROC curve.
侯旺, 欧阳红军, 雷志辉, 刘晓春, 杨夏. 基于复杂地面背景序列图像的运动弱小目标检测[J]. 光学技术, 2013, 39(2): 168. HOU Wang, OUYANG Hongjun, LEI Zhihui, LIU Xiaochun, YANG Xia. Detection of moving small target based on images in sequence of complicated surface background[J]. Optical Technique, 2013, 39(2): 168.
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