设计并实现了一种适合于工程中动态目标识别应用的实时的复杂巡航场景运动检测技术.首先,对背景和当前帧两幅图像进行卷积处理,提取边缘图像.然后分块计算背景边缘图像的局部熵,根据局部熵大小合理选取配准模型组.采用模型组与当前帧边缘图像的相关性强度及运动偏移量结果,完成场景的运动估计.实验结果表明,本文方法用于红外和可见光图像均十分有效,在分辨率为320×256,帧频50 Hz的红外图像以及分辨率为768×576,帧频25 Hz的可见光图像中运行时间分别为13、24 ms,达到了工程中应用的实时性处理要求.同时,在后续的图像处理中场景运动检测有效剔除了复杂背景图像对目标识别的干扰,可准确检测出运动变化目标.
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