Department of Geography
An integrated spatio-temporal classification method for urban fringe change detection analysis
The urban fringe is the transition zone between urban land use and rural land use. It represents the most active part of the urban expansion process. Change detection using multi-temporal imagery is proven to be an efficient way to monitor land-use/land-cover change caused by urban expansion. In this study, we propose a new multi-temporal classification method for change detection in the urban fringe area. The proposed method extracts and integrates spatio-temporal contextual information into multi-temporal image classification. The spatial information is extracted by object-oriented image segmentation. The temporal information is modelled with temporal trajectory analysis with a two-step calibration. A probabilistic schema that employs a global membership function is then used to integrate the spectral, spatial and temporal information. A trajectory accuracy measurement is proposed to assist the comparison on the performances of the integrated spatio-temporal method and classical pixel- and 'snapshot'-based classification methods. The experiment shows that the proposed method can significantly improve the accuracies of both single scene classification and temporal trajectory analysis. © 2012 Copyright Taylor and Francis Group, LLC.
Source Publication Title
International Journal of Remote Sensing
Taylor & Francis
Link to Publisher's Edition
Yang, Yetao, Qiming Zhou, Jianya Gong, and Yi Wang. "An integrated spatio-temporal classification method for urban fringe change detection analysis." International Journal of Remote Sensing 33.8 (2012): 2516-2531.