红外与激光工程, 2002, 31 (4): 294, 网络出版: 2006-04-28
基于带通滤波的红外小目标捕获算法研究
Research on infrared small target detection technique based on bandpass filtering
小目标 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
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.
Abstract
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.
张金锁, 宋利权, 靳民会, 李金宗. 基于带通滤波的红外小目标捕获算法研究[J]. 红外与激光工程, 2002, 31(4): 294. 张金锁, 宋利权, 靳民会, 李金宗. Research on infrared small target detection technique based on bandpass filtering[J]. Infrared and Laser Engineering, 2002, 31(4): 294.
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