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Using Page's cumulative sum test on MODIS time series to detect land-cover changes
journal contribution
posted on 2023-05-17, 15:36 authored by Grobler, TL, Ackermann, ER, van Zyl, AJ, Jan OlivierJan Olivier, Kleynhans, W, Brian SalmonBrian SalmonHuman settlement expansion is one of the most pervasive forms of land-cover change in South Africa. The use of Page’s cumulative sum (CUSUM) test is proposed as a method to detect new settlement developments in areas that were previously covered by natural vegetation using 500-m Moderate Resolution Imaging Spectroradiometer time-series satellite data. The method is a sequential per-pixel change alarm algorithm that can take into account positive detection delay, probability of detection, and false-alarm probability to construct a threshold. Simulated change data were generated to determine a threshold during a preliminary offline optimization phase. After optimization, the method was evaluated on examples of known land-cover change in the Gauteng and Limpopo provinces of South Africa. The experimental results indicated that CUSUM performs better than band differencing in the before-mentioned study areas.
History
Publication title
IEEE Geoscience and Remote Sensing LettersVolume
10Pagination
332-336ISSN
1545-598XDepartment/School
School of EngineeringPublisher
IEEEPlace of publication
USARights statement
Copyright 2012 IEEERepository Status
- Restricted