Accuracy assessment on multi-temporal land-cover change detection using a trajectory error matrix

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	Accuracy assessment on multi-temporal land-cover change detection using a trajectory error matrix
	Li Baolin
	2009
关键词	Arid regions Error detection Landforms Matrix algebra Signal detection
英文摘要	This study develops a practical methodology to assess the accuracy of multi-temporal change detection using a trajectory error matrix (TEM). In this error matrix one axis represents the land-cover change trajectory categories derived from single-date classified images, and the other represents the land-cover change trajectories identified from reference data. The overall accuracies of change trajectories and states of change/no-change are used as indices for accuracy assessment. As the number of possible land-cover change trajectories can be enormous, a practical processing flow for computing accuracy assessment indices has also been developed to avoid listing all possible change trajectories in the error matrix. A case study using this method was conducted to assess the accuracy of land-cover change over a period with five observations in a study area in China's arid zone. This method simplifies the process of estimating overall accuracy in the change trajectory analysis, and provides a more realistic and detailed assessment of the results of multi-temporal change detection using post-classification comparison methods.
出处	International Journal of Remote Sensing
卷	30 期:5 页:1283-1296
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24833]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li Baolin. Accuracy assessment on multi-temporal land-cover change detection using a trajectory error matrix. 2009.