The study was aimed at determining the relative proportions of ground cover components in a mixed pixel. A new estimator is introduced, which is based on Optimization Method and is used for the derivation of land cover classification maps. Fraction images were derived from the two reflective channels 3 and 4 of LANDSAT ETM+ and channels 2 and 3 of SPOT data. This research indicated that the use of optimization method,might lead to improvements in mapping and analyses of land cover changes. It has been shown that the use of non-standard estimators can lead to significant increase in the accuracy of estimation.
机构:
Indiana Univ, Bloomington, IN 47408 USA
Indiana Univ, Anthropol Ctr Training & Res Global Environm Chan, Bloomington, IN 47405 USAIndiana Univ, Bloomington, IN 47408 USA
Lu, D.
Batistella, M.
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Brazilian Agr Res Corp, Embrapa Satellite Monitoring, BR-13088 Campinas, SP, BrazilIndiana Univ, Bloomington, IN 47408 USA
Batistella, M.
Moran, E.
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Indiana Univ, Anthropol Ctr Training & Res Global Environm Chan, Bloomington, IN 47405 USAIndiana Univ, Bloomington, IN 47408 USA
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Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Land Management & Nat Hazards Unit, I-21027 Ispra, VA, ItalyCommiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Land Management & Nat Hazards Unit, I-21027 Ispra, VA, Italy
Pekkarinen, Anssi
Reithmaier, Lucia
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Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Land Management & Nat Hazards Unit, I-21027 Ispra, VA, ItalyCommiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Land Management & Nat Hazards Unit, I-21027 Ispra, VA, Italy
Reithmaier, Lucia
Strobl, Peter
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Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Land Management & Nat Hazards Unit, I-21027 Ispra, VA, ItalyCommiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, Land Management & Nat Hazards Unit, I-21027 Ispra, VA, Italy