Title :
Updating land cover maps with satellite images
Author :
Caetano, Mário ; Santos, Teresa
Author_Institution :
Centro Nacional de Informacao Geografica, Porto Salvo, Portugal
Abstract :
An alternative approach is proposed for periodical land cover mapping. Aerial photography is used for land cover mapping in reference years and satellite images are used to update the land cover maps for the years in between. The annual maps have the thematic and geometric accuracy of the reference maps for the areas that did not experienced any change since the previous reference year. For the areas that changed, the accuracy depends on the satellite images used for the updating
Keywords :
cartography; image processing; vegetation mapping; aerial photography; annual maps; geometric accuracy; land cover maps; periodical land cover mapping; reference years; satellite images; thematic accuracy; Classification algorithms; Costs; Decision making; Fires; Image classification; Photography; Pixel; Production; Satellites; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.976720
