Abstract | ||
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Human 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. |
Year | DOI | Venue |
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2013 | 10.1109/LGRS.2012.2205556 | Geoscience and Remote Sensing Letters, IEEE |
Keywords | Field | DocType |
radiometry,vegetation,vegetation mapping,CUSUM test,Gauteng province,Limpopo province,MODIS time series,MODIS time-series satellite data,Moderate Resolution Imaging Spectroradiometer,Page cumulative sum test,South Africa,human settlement expansion,land-cover changes,natural vegetation,sequential per-pixel change alarm algorithm,Cumulative sum,Moderate Resolution Imaging Spectroradiometer (MODIS),hypertemporal and sequential change detection | Time series,CUSUM,Moderate-resolution imaging spectroradiometer,Vegetation,Remote sensing,Radiometry,Land cover,Statistical power,Satellite data,Mathematics | Journal |
Volume | Issue | ISSN |
10 | 2 | 1545-598X |
Citations | PageRank | References |
2 | 0.45 | 0 |
Authors | ||
7 |
Name | Order | Citations | PageRank |
---|---|---|---|
Trienko L. Grobler | 1 | 2 | 2.82 |
Etienne R. Ackermann | 2 | 7 | 2.46 |
Augustinus J. van Zyl | 3 | 8 | 2.83 |
Jan C. Olivier | 4 | 148 | 29.36 |
Waldo Kleynhans | 5 | 111 | 27.45 |
Brian P. Salmon | 6 | 150 | 27.18 |
van Zyl, A.J. | 7 | 2 | 0.45 |