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Proceedings Paper

Combined contextual classification method for large scale land covering based on multi-resolution satellite data
Author(s): QiongHua Wang; WenJu He; WeiDong Sun
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Paper Abstract

For multi-resolution land covering classification, many researches have focused on selecting and integrating appropriate feature information from different spatial resolution data of the same area. However, when extending to large scale problems, it is no surprise that low resolution data has worse performance, and high resolution data with wide coverage area has more limitations. To solve this problem, a novel framework is presented which compounds multiple spatial resolution data at arithmetic level without the limitation of full-scale multi-resolution data. The framework allows integrating conditional random fields (CRFs) with "real" likelihood distribution. Discrete feature-likelihood mapping is proposed to represent multi-to-single spatial correspondence. By considering spatial contextual information between pixels, CRFs based classifier offers a robust and accurate framework. Our experiments show that the proposed method can greatly improve the accuracy for large scale land covering classification applications.

Paper Details

Date Published: 14 November 2007
PDF: 8 pages
Proc. SPIE 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications, 679003 (14 November 2007); doi: 10.1117/12.749490
Show Author Affiliations
QiongHua Wang, Tsinghua Univ. (China)
WenJu He, Technical Univ. of Berlin (Germany)
WeiDong Sun, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 6790:
MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications

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