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Proceedings Paper

Remote sensing imagery classification using multi-objective gravitational search algorithm
Author(s): Aizhu Zhang; Genyun Sun; Zhenjie Wang
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Paper Abstract

Simultaneous optimization of different validity measures can capture different data characteristics of remote sensing imagery (RSI) and thereby achieving high quality classification results. In this paper, two conflicting cluster validity indices, the Xie-Beni (XB) index and the fuzzy C-means (FCM) (Jm) measure, are integrated with a diversity-enhanced and memory-based multi-objective gravitational search algorithm (DMMOGSA) to present a novel multi-objective optimization based RSI classification method. In this method, the Gabor filter method is firstly implemented to extract texture features of RSI. Then, the texture features are syncretized with the spectral features to construct the spatial-spectral feature space/set of the RSI. Afterwards, cluster of the spectral-spatial feature set is carried out on the basis of the proposed method. To be specific, cluster centers are randomly generated initially. After that, the cluster centers are updated and optimized adaptively by employing the DMMOGSA. Accordingly, a set of non-dominated cluster centers are obtained. Therefore, numbers of image classification results of RSI are produced and users can pick up the most promising one according to their problem requirements. To quantitatively and qualitatively validate the effectiveness of the proposed method, the proposed classification method was applied to classifier two aerial high-resolution remote sensing imageries. The obtained classification results are compared with that produced by two single cluster validity index based and two state-of-the-art multi-objective optimization algorithms based classification results. Comparison results show that the proposed method can achieve more accurate RSI classification.

Paper Details

Date Published: 18 October 2016
PDF: 6 pages
Proc. SPIE 10004, Image and Signal Processing for Remote Sensing XXII, 100041I (18 October 2016); doi: 10.1117/12.2241305
Show Author Affiliations
Aizhu Zhang, East China Univ. of Petroleum (China)
Heriot-Watt Univ. (United Kingdom)
Genyun Sun, East China Univ. of Petroleum (China)
Zhenjie Wang, East China Univ. of Petroleum (China)


Published in SPIE Proceedings Vol. 10004:
Image and Signal Processing for Remote Sensing XXII
Lorenzo Bruzzone; Francesca Bovolo, Editor(s)

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