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A spatio-temporal approach to detecting land cover change using an extended Kalman filter on MODIS time series data
conference contribution
posted on 2023-05-23, 06:49 authored by Kleynhans, W, Jan OlivierJan Olivier, Brian SalmonBrian Salmon, Wessels, KJ, van den Bergh, FA method for detecting land cover change using NDVI timeseries data derived from MODerate-resolution Imaging Spectroradiometer (MODIS) satellite data is proposed. The algorithm acts as a per pixel change alarm and takes as input the NDVI time-series of a 3x3 grid of MODIS pixels. An Extended Kalman Filter was used to estimate a series of parameters related to each NDVI signal. A spatial comparison between the center pixel of the the 3x3 grid and each of its neighboring pixels’ parameters was done to calculate a change metric which compared to a threshold yielded a change or no-change decision. The method was tested on real change examples in the study area and results indicate 90% detection of new settlements occurring in naturally vegetated areas.
History
Publication title
Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS) 2010Pagination
1972-1975ISBN
978-1-4244-9564-1Department/School
School of EngineeringPublisher
IEEE ExplorePlace of publication
USAEvent title
IEEE International Geoscience and Remote Sensing SymposiumEvent Venue
Hawaii, USADate of Event (Start Date)
2010-07-25Date of Event (End Date)
2010-07-30Repository Status
- Restricted