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Spatial–Spectral Feature Fusion Coupled with Multi-Scale Segmentation Voting Decision for Detecting Land Cover Change with VHR Remote Sensing Images

1
School of Earth Science and Resources, Chang’an University, Xi’an 710064, China
2
Shaanxi Bureau of Surveying, Mapping and Geoinformation, Xi’an 710054, China
3
School of Geological Engineering and Surveying, Chang’an University, Xi’an 710064, China
4
School of Computer Science and Engineering, Xi’an University of Technology, Xi’an 710048, China
5
Faculty of Electrical and Computer Engineering, University of Iceland, Reykjavik IS 107, Iceland
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(16), 1903; https://doi.org/10.3390/rs11161903
Received: 14 July 2019 / Revised: 5 August 2019 / Accepted: 5 August 2019 / Published: 14 August 2019
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Abstract

In this article, a novel approach for land cover change detection (LCCD) using very high resolution (VHR) remote sensing images based on spatial–spectral feature fusion and multi-scale segmentation voting decision is proposed. Unlike other traditional methods that have used a single feature without post-processing on a raw detection map, the proposed approach uses spatial–spectral features and post-processing strategies to improve detecting accuracies and performance. Our proposed approach involved two stages. First, we explored the spatial features of the VHR remote sensing image to complement the insufficiency of the spectral feature, and then fused the spatial–spectral features with different strategies. Next, the Manhattan distance between the corresponding spatial–spectral feature vectors of the bi-temporal images was employed to measure the change magnitude between the bi-temporal images and generate a change magnitude image (CMI). Second, the use of the Otsu binary threshold algorithm was proposed to divide the CMI into a binary change detection map (BCDM) and a multi-scale segmentation voting decision algorithm to fuse the initial BCDMs as the final change detection map was proposed. Experiments were carried out on three pairs of bi-temporal remote sensing images with VHR remote sensing images. The results were compared with those of the state-of-the-art methods including four popular contextual-based LCCD methods and three post-processing LCCD methods. Experimental comparisons demonstrated that the proposed approach had an advantage over other state-of-the-art techniques in terms of detection accuracies and performance. View Full-Text
Keywords: land cover change detection; very high resolution; bi-temporal remote sensing images; spatial–spectral features; multi-scale segmentation land cover change detection; very high resolution; bi-temporal remote sensing images; spatial–spectral features; multi-scale segmentation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zheng, Z.; Cao, J.; Lv, Z.; Benediktsson, J.A. Spatial–Spectral Feature Fusion Coupled with Multi-Scale Segmentation Voting Decision for Detecting Land Cover Change with VHR Remote Sensing Images. Remote Sens. 2019, 11, 1903.

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