CAJ | 학술논문

针对红外成像应用于高速飞行器发展的需求，开展了光学窗口气动热辐射条件下的目标检测方法研究。首先介绍了目前小目标检测方法工程应用现状及其应用于气动效应条件的不足，总结了窗口红外热辐射的特征分析，给出了图像整体灰度分布，目标对比度、目标灰度与边缘变化程度的分析；针对热辐射特征与图像特点，提出了基于梯度域的视觉显著性目标检测方法，并给出了算法运行的流程；最后，从背景抑制后的目标对比度、运行时间、检测效果等方面，对提出的方法与常用的小目标检测算法进行了对比实验，显示了方法在处理窗口热辐射条件下的目标检测性能的优越性。
침대홍외성상응용우고속비행기발전적수구，개전료광학창구기동열복사조건하적목표검측방법연구。수선개소료목전소목표검측방법공정응용현상급기응용우기동효응조건적불족，총결료창구홍외열복사적특정분석，급출료도상정체회도분포，목표대비도、목표회도여변연변화정도적분석；침대열복사특정여도상특점，제출료기우제도역적시각현저성목표검측방법，병급출료산법운행적류정；최후，종배경억제후적목표대비도、운행시간、검측효과등방면，대제출적방법여상용적소목표검측산법진행료대비실험，현시료방법재처리창구열복사조건하적목표검측성능적우월성。
For infrared imaging meeting the development needs of high- speed aircraft, a target detection method under the condition of high heat dome infrared radiation was proposed. Firstly, the current small target detection method used in current engineering application and its flaws was described when facing aero- thermal effect during high speed fly. Then infrared radiation characteristics of heat dome were analyzed in aspect of the energy intensity distribution, the target contrast, target gray and edge changes. According to radiation characteristics and features, target detection method was proposed based on the gradient domain saliency. And the detail processes was given in the paper; finally, target contrast after background suppressing, running time, detection rate, etc. were compared between the proposed method and the commonly used small target detection algorithms. The experiments showed that the proposed method performs superiority under the conditions of thermal radiation target detection.