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Title: AGRICULTURAL CROPS MAPPING BASED ON SENTINEL-1 SAR C-BAND DUAL-POLARIMETRIC DATA
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AGRICULTURAL CROPS MAPPING BASED ON SENTINEL-1 SAR C-BAND DUAL-POLARIMETRIC DATA
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1314-2704
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English
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The new era of SAR exploitation started with the launch of Sentinel-1A and 1B satellites providing dual-polarized VV/VH imagery, free of charge, with unprecedented revisit interval of a few days over very large swaths. The research questions addressed in this paper are: how to process efficiently big set of multitemporal Sentinel-1 images in order to retrieve correctly classified agricultural crops for inventory purposes? How to reduce the amount of data and the redundancy of information resulting from very frequent observations? Two methods of feature space reduction and decorrelation have been proposed: PCA and ICT. The classification procedure was based on the maximum likelihood classifier. The results show that combining the ascending and descending orbits is necessary in order to avoid misclassification of crops characterized by row tillage. On the other hand the combining of VV and VH polarizations increased the accuracy of separation of potatoes and maize. Winter cereals and summer crops other than potatoes and maize were confused at about 38 percent. The rapeseed is successfully classified with very high accuracy on short time series of images at VV and VH polarizations.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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11-18
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29 June - 5 July, 2017
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website
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cdrom
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3172
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crops mapping; Sentinel-1; C-band; dual-polarimetric images; ICT/PCA
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