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A Reliability-Based Multi-Algorithm Fusion Technique in Detecting Changes in Land Cover
School of Remote Sensing and Information Engineering, Wuhan University, No. 129 of Luoyu Road, Wuhan 430079, China
Joint Spatial Information Research Laboratory Between The Hong Kong Polytechnic University and Wuhan University, No.129 of Luoyu Road, Wuhan 430079, China
* Author to whom correspondence should be addressed.
Received: 7 January 2013; in revised form: 22 February 2013 / Accepted: 26 February 2013 / Published: 1 March 2013
Abstract: Detecting land use or land cover changes is a challenging problem in analyzing images. Change-detection plays a fundamental role in most of land use or cover monitoring systems using remote-sensing techniques. The reliability of individual automatic change-detection algorithms is currently below operating requirements when considering the intrinsic uncertainty of a change-detection algorithm and the complexity of detecting changes in remote-sensing images. In particular, most of these algorithms are only suited for a specific image data source, study area and research purpose. Only a number of comprehensive change-detection methods that consider the reliability of the algorithm in different implementation situations have been reported. This study attempts to explore the advantages of combining several typical change-detection algorithms. This combination is specifically designed for a highly reliable change-detection task. Specifically, a fusion approach based on reliability is proposed for an exclusive land use or land cover change-detection. First, the reliability of each candidate algorithm is evaluated. Then, a fuzzy comprehensive evaluation is used to generate a reliable change-detection approach. This evaluation is a transformation between a one-way evaluation matrix and a weight vector computed using the reliability of each candidate algorithm. Experimental results reveal that the advantages of combining these distinct change-detection techniques are evident.
Keywords: reliability; change-detection; multi-algorithm fusion; fuzzy technique
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MDPI and ACS Style
Zhang, P.; Shi, W.; Wong, M.S.; Chen, J. A Reliability-Based Multi-Algorithm Fusion Technique in Detecting Changes in Land Cover. Remote Sens. 2013, 5, 1134-1151.
Zhang P, Shi W, Wong MS, Chen J. A Reliability-Based Multi-Algorithm Fusion Technique in Detecting Changes in Land Cover. Remote Sensing. 2013; 5(3):1134-1151.
Zhang, Penglin; Shi, Wenzhong; Wong, Man S.; Chen, Jiangping. 2013. "A Reliability-Based Multi-Algorithm Fusion Technique in Detecting Changes in Land Cover." Remote Sens. 5, no. 3: 1134-1151.