Title :
Multi-image ensemble classification
Author :
Knudby, Anders ; Acevedo, Zulybeth Galan ; Chow, Peter ; Hammar, Linus ; Eggertsen, Linda ; Gullstrom, Martin
Author_Institution :
Dept. of Geogr., Simon Fraser Univ., Burnaby, BC, Canada
Abstract :
Ensemble classification, in which results from multiple single-scene classifications are combined through a voting procedure, is shown to improve classification accuracy over the classification based on a single best scene. In addition, ensemble classification can produce a complete land cover map in areas without cloud-free remote sensing data. The ensemble classification approach is illustrated with a case study from the shallow-water environment surrounding Inhaca Island, Mozambique (26.0 °S, 32.6 °E), for which 17 Landsat scenes, all from 2013 and containing <; 50% cloud cover, were combined in the ensemble. Freely available software implementing the described ensemble classification approach with Landsat data is under development.
Keywords :
clouds; image classification; land cover; remote sensing; AD 2013; Inhaca Island; Landsat data; Landsat scene; Mozambique; cloud cover; cloud-free remote sensing data; complete land cover map; ensemble classification approach; freely available software implementation; improve classification accuracy; multiimage ensemble classification; multiple single-scene classification; shallow-water environment; single best scene; voting procedure; Accuracy; Clouds; Earth; Educational institutions; Reflectivity; Remote sensing; Satellites; Landsat; classification; land cover; nearshore environment;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6946779