摘要
分析了红外点目标的成像特性 ,介绍了带通滤波的特点和设计方法 ,并在对数据进行滤波处理后采用基于位置和灰度相关算法对目标进行确认 ,引入了海天线的计算模型。该方法适应性强 ,处理效果好 ,对海背景干扰和天空云层干扰具有较高的抑制作用。通过卷积实现的带通滤波算法计算简明 ,且容易由硬件实现 ,对运动小目标的检测具有较强的应用价值。实验结果表明该算法能够检测出海天背景下帧间移动的低信噪比的红外小目标。
Infrared small target detection algorithm based on bandpass filtering is presented. The target imaging speciality is analyzed correctly, and the design method of bandpass filter is discussed. The target is confirmed by the correlation method based on position and gray after filtering process, and the calculation model of sea-skyline is introduced. This method can properly restrain the interfere of sea and clouds, reduce the cost of computation, track the target in real-time, and can be implemented by hardware easily. It is very useful for the detection of small moving targets with low signal noise ratio.
出处
《红外与激光工程》
EI
CSCD
北大核心
2002年第4期294-296,309,共4页
Infrared and Laser Engineering
关键词
红外小目标
捕获
带通滤波
海天线
灰度相关
位置相关
Small target
\ Bandpass filtering
\ Sea line
\ Gray-level-based correlation
\ Position-based correlation
