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- Title
Novel fuzzy uncertainty modeling for land cover classification based on clustering analysis.
- Authors
He, Hui; Xing, Haihua; Hu, Dan; Yu, Xianchuan
- Abstract
It is well known that there is a degree of fuzzy uncertainty in land cover classification using remote sensing (RS) images. In this article, we propose a novel fuzzy uncertainty modeling algorithm for representing the features of land cover patterns, and present an adaptive interval type-2 fuzzy clustering method. The proposed fuzzy uncertainty modeling method is performed in two main phases. First, the segmentation units of the input multi-spectral RS image data are subjected to object-based interval-valued symbolic modeling. As a result, features for each land cover type are represented in the form of an interval-valued symbolic vector, which describes the intra-class uncertainty better than the source data and improves the separability between different classes. Second, interval type-2 fuzzy sets are generated for each cluster based on the distance metric of the interval-valued vectors. This step characterizes the inter-class high-order fuzzy uncertainty and improves the classification accuracy. To demonstrate the advantages and effectiveness of the proposed approach, extensive experiments are conducted on two multispectral RS image datasets from regions with complex land cover characteristics, and the results are compared with those given by well-known fuzzy and conventional clustering algorithms.
- Subjects
LAND cover; FUZZY logic; REMOTE sensing; COMPUTER algorithms; MULTISPECTRAL imaging
- Publication
SCIENCE CHINA Earth Sciences, 2019, Vol 62, Issue 2, p438
- ISSN
1674-7313
- Publication type
Article
- DOI
10.1007/s11430-017-9224-6