DocumentCode :
2915069
Title :
Identifying main crop classes in an irrigated area using high resolution image time series
Author :
Simonneaux, V. ; Francois, Pierre
Author_Institution :
Centre d´etude spatiale de la biosphere, Toulouse, France
Volume :
1
fYear :
2003
fDate :
21-25 July 2003
Firstpage :
252
Abstract :
We present a robust and reproducible method to map the main land cover classes in an irrigated area near Marrakech (bare soil, herbaceous crops, trees on bare soil, trees on herbaceous understory), using a time series of 9 SPOT high resolution images. The images were first radiometrically corrected in reflectance using a physical model (SMAC), and then applying an adjustment based on invariant objects located on the scene. The 9 images were then used to generate a NDVI profile for each pixel, which was analyzed using simple decision rules to assign it to a landcover class, considering simple criteria like the minimum, maximum, and dynamics of the NDVI.
Keywords :
agriculture; image processing; terrain mapping; vegetation mapping; Marrakech; Morocco; NDVI profile; SMAC; SPOT images; crop phenology; herbaceous crops; image time series; irrigated area; land cover class; main crop classes identification; radiometrical correction; reflectance; Calibration; Crops; Image resolution; Layout; Pixel; Radiometry; Reflectivity; Soil; Spatial resolution; Vegetation mapping;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Conference_Location :
Toulouse, France
Print_ISBN :
0-7803-7929-2
Type :
conf
DOI :
10.1109/IGARSS.2003.1293741
Filename :
1293741
Link To Document :
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