单幅红外图像上的地雷检测

Landmine Detection on Single Infrared Image

针对被动红外成像地雷探测技术中的单散雷探测问题,结合一维信号检测理论以及现代信号处理算法,对红外图像进行处理。文章从单幅红外图像入手,在分析了红外图像上地雷检测原理的基础上,结合背景红外图像的特性,给出了地雷信号及背景图像信号的模型,再从各模型中未知参数的特点出发,利用现代信号处理算法,对未知参数进行估计。当地雷信号及背景图像信号都确定后,采用广义相关器以实现地雷信号的探测。对埋有似雷物的单幅红外图像进行检测试验。结果表明,文中方法能够清晰的标示出地雷的存在及其位置。

For single landmine detection with the passive infrared imaging technology of the landmine detection, the infrared images were processed according to the 1-D signal detection theory and the algorithms for modem signal processing. The signal models of landmine and background image were given by analyzing the theory of landmine detection on the infrared image and combining the characteristic of the background infrared image. Then, combined with the characteristics of the models＇ unknown parameters, we estimated the unknown parameters through the algorithms of modem signal processing. When the landmine and the background image signal were determined, the generalized correlator was used to detect the landmine. Testing results with the single infrared image burying the target show that the method can mark the landmine clearly.