Mapy podstawowych form pokrycia i użytkowania terenu zlewni Raby powyżej Zbiornika Dobczyckiego - porównanie dokładności klasyfikacji pikselowej i obiektowej obrazów LANDSAT TM

• Autorzy: Badurska M. , Drzewiecki W. , Tokarczyk P.

Warianty tytułu

EN

Mapping of basic land-use/land cover types in upper Raba watershed - accuracy comparison of pixel-based and object-based approaches to LANDSAT TM images classification

• Języki publikacji: PL

Abstrakty

EN

The research presented in the paper has been aimed at mapping the basic types of land-use in the upper Raba watershed (south Poland). The maps have been prepared for a study of the influence of land-use changes within the watershed on the sediment yields introduced into the reservoir. Because the erosion models used for sediment yields prediction need only to identify the main land-use / land cover classes (arable land, meadows and pastures, forests, waters, developed areas), the maps have been based on classification of middle-resolution satellite images (Landsat TM). In the research the results of traditional pixel-based classification were compared to the ones obtained in the object based approach. Six different Landsat TM images were classified. The methodology of both classification approaches have been described in the paper. The accuracy assessment of the classification results was based on their comparison with the land use types defined by the photo interpretation of colour composite images. The assessment was done by two operators. Each of them used different set of two hundred and fifty randomly generated sample points. In most cases the pixel-based approach resulted in higher overall accuracy. However, if overall accuracy confidence intervals are taken into consideration, none of the methods can be definitely recognised as a better one.

Słowa kluczowe

PL

Landsat TM; klasyfikacja pikselowa; klasyfikacja obiektowa; ocena; dokładność klasyfikacji; zlewnia Raby; pokrycie i użytkowanie terenu

EN

Landsat TM; pixel based classification; object-based classification; classification accuracy assessment; Raba watershed; land-use; land cover

• Wydawca: Polskie Towarzystwo Geograficzne, Oddział Teledetekcji i Geoinformatyki
• Czasopismo: Teledetekcja Środowiska
• Rocznik: 2009
• Tom: T. 42
• Strony: 15--21
• Opis fizyczny: Bibliogr. 19 poz., mapy

Twórcy

autor

Badurska M.

• Katedra Geoinformacji, Fotogrametrii i Teledetekcji Środowiska AGH w Krakowie

autor

Drzewiecki W.

• Katedra Geoinformacji, Fotogrametrii i Teledetekcji Środowiska AGH w Krakowie

autor

Tokarczyk P.

• Katedra Geoinformacji, Fotogrametrii i Teledetekcji Środowiska AGH w Krakowie

Bibliografia

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