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This paper presents a change detection approach for high-resolution remote sensing image combined the pre-classification with the post-classification comparison. Firstly, a spectrum correction image is constructed on the basis of fusing the differential and ratio algorithm, which can alleviate the effects of single band's sensitivity. Secondly, a binary change mask is extracted from the spectrum correction...
We are evolving into a society with increasingly acute levels of natural disaster risks which are problems that we can do something about. Natural disaster risk communication (NDRC) is the only way to achieve the overall objective of natural disaster risk reduction strategies. In this paper, the term NDRC is firstly defined. Then an NDRC framework based on two-way communication, which outlines the...
This paper mainly introduces the drought monitoring model based on the cloud parameters method and Remote Sensing data with a stable performance to the temporal and spatial variation of remote sensing data, especially in the spatial scale. Based on the fundamental of solar radiation, we deduce the spatial modification functions about the different drought levels with the regression method. Meanwhile,...
Based on the original model, this paper mainly introduces modification to the cloud index in both temporal and spatial dimension, and leads to a new drought monitoring model with a stable performance to the temporal and spatial variation of remote sensing data. In this study, taking into consideration of the temporal and spatial variation, a comprehensive analysis is performed about functions which...
FY-2C is a geostationary orbiting meteorological satellite designed by China independently. Based on statistical and spectral analysis of FY-2C data, this paper proposed a new cloud detection index operating accurately and quickly in spite of the low spatial resolution few spectral information. The diversity and sensitivity of cloud for each of the 4 bands of FY-2C data is also analyzed in this paper...
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