Abstract
This paper proposes an automatic framework for land cover classification. In majority of published work by various researchers so far, most of the methods need manually mark the label of land cover types. In the proposed framework, all the information, like land cover types and their features, is defined as prior knowledge achieved from land use maps, topographic data, texture data, vegetation’s growth cycle and field data. The land cover classification is treated as an automatically supervised learning procedure, which can be divided into automatic sample selection and fuzzy supervised classification. Once a series of features were extracted from multi-source datasets, spectral matching method is used to determine the degrees of membership of auto-selected pixels, which indicates the probability of the pixel to be distinguished as a specific land cover type. In order to make full use of this probability, a fuzzy support vector machine (SVM) classification method is used to handle samples with membership degrees. This method is applied to Landsat Thematic Mapper (TM) data of two areas located in Northern China. The automatic classification results are compared with visual interpretation. Experimental results show that the proposed method classifies the remote sensing data with a competitive and stable accuracy, and demonstrate that an objective land cover classification result is achievable by combining several advanced machine learning methods.
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Acknowledgments
This paper is supported by the National Natural Science Foundation of China with Grant NO. 41101398, 41271367 and 61340058; Key Projects in the National Science & Technology Pillar Program with Grant NO. 2011BAH06B02.
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Xia, L., Luo, J., Wang, W. et al. An Automated Approach for Land Cover Classification Based on a Fuzzy Supervised Learning Framework. J Indian Soc Remote Sens 42, 505–515 (2014). https://doi.org/10.1007/s12524-013-0352-6
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DOI: https://doi.org/10.1007/s12524-013-0352-6