基于温度场剖面的航行器热尾迹红外识别算法

Identification Algorithm of Vehicle’s Infrared Thermal Wake Based on Temperature Field Profile

提出了一种利用热尾迹区分水下航行器和水面航行器的手段。通过分析热尾迹红外图像,借鉴等位面的概念,提出了一种基于温度场剖面的航行器热尾迹识别算法。首先构建热尾迹红外图像的三维示意图,然后在此基础上通过全局温度特征确定的等间隔温度剖面来对其进行分割,最后将反映温度分布离散程度的自定义参数sigma和反映温度分布离散程度变化情况的自定义参数delta作为特征来判断热尾迹所属类别。结果表明本文所提出的识别算法能有效判断热尾迹所属类别。

Based on thermal wake,a means of distinguishing underwater vehicles and surface vessels is proposed.By analyzing infrared thermal wake images and learning from the concept of equipotential surface,an identification algorithm of a vehicle’s infrared thermal wake based temperature field profile is proposed.First,a 3D schematic diagram of the vehicle’s infrared thermal wake is constructed.Then,it is segmented by the equal-temperature profile determined by the global temperature feature.Finally,the custom parameters sigma and delta,which reflect the temperature dispersion and its changes,respectively,are used as features to determine the category of the vehicle’s infrared thermal wake.The result shows that the algorithm is effective to judge the classification of thermal wake.