The paper mainly researches the weak point moving target detection and tracking technology in the infrared image, introduced the domestic and foreign research dynamic and obtain achievement.
本文系统的研究了红外图像中微弱点状运动目标的检测及跟踪技术，介绍了国内外的研究动态和取得的成果。
Because there is speckle noise in SAR image and the background clutter of water is usually very complex, weak target detection is a big challenge for conventional methods.
SAR图像存在相干噪声以及水面背景杂波的复杂性，传统方法对于弱目标检测存在困难。
This dissertation mainly studied the image feature fusion based on PCA (principal component analyses) and its application of Small-weak target matching.
本文对基于主成分分析的特征级图像融合及其在弱小目标匹配识别上的应用做了一定的研究和探索。
The image of point target in the imaging area is only several or dozens of pixels. And its strength is relatively weak and drowned in the noise, no obvious size, shape, texture, and other information.
点目标的成像面积仅为几个或几十个象素，目标强度相对较弱，无明显的尺寸、形状、纹理信息可供后续处理系统进行分析使用。
The image of point target in the imaging area is only several or dozens of pixels. And its strength is relatively weak and drowned in the noise, no obvious size, shape, texture, and other information.
点目标的成像面积仅为几个或几十个象素，目标强度相对较弱，无明显的尺寸、形状、纹理信息可供后续处理系统进行分析使用。
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