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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Relative radiometric normalization of multi-temporal satellite images is the necessary process in change detection or image mosaic.

多时相遥感影像的相对辐射归一化是进行变化检测或拼接不可缺少的步骤。

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The most serious problems for change detection on high-resolution images are the sensitivity to registration and the complexity of terrain.

而对于高分辨率遥感图像的变化检测，面临的突出问题是对配准误差的敏感性和人工环境下地形的复杂性。

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