Detailed Land Cover Mapping from Multitemporal Landsat-8 Data of Different Cloud Cover

Abstract : Detailed, accurate and frequent land cover mapping is a prerequisite for several important geospatial applications and the fulfilment of current sustainable development goals. This paper introduces a methodology for the classification of annual high-resolution satellite data into several detailed land cover classes. In particular, a nomenclature with 27 different classes was introduced based on CORINE Land Cover (CLC) Level-3 categories and further analysing various crop types. Without employing cloud masks and/or interpolation procedures, we formed experimental datasets of Landsat-8 (L8) images with gradually increased cloud cover in order to assess the influence of cloud presence on the reference data and the resulting classification accuracy. The performance of shallow kernel-based and deep patch-based machine learning classification frameworks was evaluated. Quantitatively, the resulting overall accuracy rates differed within a range of less than 3%; however, maps produced based on Support Vector Machines (SVM) were more accurate across class boundaries and the respective framework was less computationally expensive compared to the applied patch-based deep Convolutional Neural Network (CNN). Further experimental results and analysis indicated that employing all multitemporal images with up to 30% cloud cover delivered relatively higher overall accuracy rates as well as the highest per-class accuracy rates. Moreover, by selecting 70% of the top-ranked features after applying a feature selection strategy, slightly higher accuracy rates were achieved. A detailed discussion of the quantitative and qualitative evaluation outcomes further elaborates on the performance of all considered classes and highlights different aspects of their spectral behaviour and separability.
Type de document :
Article dans une revue
Remote Sensing, MDPI, 2018, 10 (8), 〈10.3390/rs10081214〉
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Contributeur : Maria Vakalopoulou <>
Soumis le : mardi 18 décembre 2018 - 14:18:56
Dernière modification le : jeudi 7 février 2019 - 16:34:33

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Christina Karakizi, Konstantinos Karantzalos, Maria Vakalopoulou, Georgia Antoniou. Detailed Land Cover Mapping from Multitemporal Landsat-8 Data of Different Cloud Cover. Remote Sensing, MDPI, 2018, 10 (8), 〈10.3390/rs10081214〉. 〈hal-01959065〉



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