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Drought is a type of natural disaster that has the most significant impacts on agriculture. Regional drought monitoring based on remote sensing has become popular due to the development of remote sensing technology. In this study, vegetation condition index (VCI) data recorded from 1982 to 2010 in agricultural areas of China were obtained from advanced very high resolution radiometer (AVHRR) data,...
Change detection is still a research hotspot in digital image processing and information extracting area, but how to detect the changes of target area quickly and accurately is still a challenge. This paper proposed a change detection method which find the target areas first and then locate the change types. An improved fuzzy c-means (FCM) algorithm was put forwarded and proved to be sensitive to...
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