Advanced image processing algorithms assist operators with change detection, image classification, identifying anomalies and tracking patterns of activity over time.

先进的图像处理算法协助操作人员随时进行变化检测、图像分类、识别异常和跟踪活动模式。

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Unless you have the original image, noting the change between the new and original images is a difficult task (although software is available to help with this detection process).

除非您有原图片，否则要发现新图片与原图片之间的变化是一项非常艰难的任务(尽管有软件可以帮助侦测到这种变化)。

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This paper presents an algorithm about SAR image change detection based on Principal Component Analysis (PCA).

该文提出一种基于主分量分析(pca)的SAR图像变化检测算法。

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