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The Scale Differentiation Small Target Detection Method of Air-to-Ground Forward-Looking Imaging System
Authors
佟新鑫
张克宇
朱丹
王玉良
Publication date
1 January 2012
Publisher
Abstract
针对空地前视成像系统的特点,对图像纵向尺度差异进行了推导,得出了尺度差异化参数与目标尺寸和图像纵向坐标的关系.通过尺度差异化高斯差算子对小目标图像进行预处理,有效均衡了远景端和近景端因成像视角和距离关系导致的尺度差异,再通过尺度差异化扩展方差算法对小目标进行了增强,能够有效抑制强起伏背景,并且对亮暗目标同时有效,从目标分割实验结果可以看到,本文提出的尺度差异化处理方法能够有效探测几个至几十个像素的微弱小目标,具有扩散小、漂移小的优点,有利于进一步的目标分析与跟踪处理
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Shenyang Institute of Automation,Chinese Academy Of Sciences
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Last time updated on 12/02/2018