Összesen 1 találat.


001-es BibID:BIBFORM090184
Első szerző:Molnár Vanda Éva (környezetkutató)
Cím:Species-level classification of urban trees from worldview-2 imagery in Debrecen, Hungary: an effective tool for planning a comprehensive green network to reduce dust pollution / Molnár Vanda Éva, Simon Edina, Szabó Szilárd
Megjegyzések:Urban green spaces of cities are crucial elements of city structure that ensure habitat for species and ecological functionality of habitat patches, maintain biodiversity, and provide environmental services. However, detailed maps intended for planning and improving the existing network require a quick and effective technique for assessing the possibilities. Multispectral imagery is an accessible source for species-level classification of urban trees. Using a multispectral image from the WorldView?2 satellite sensor, we classified six of the most common urban tree species in Debrecen, Hungary. Maximum Likelihood (ML) and Support Vector Machine (SVM) classifiers were applied to different numbers of the MNF-transformed bands. The best overall accuracy was achieved with the ML algorithm applied to the first four transformed bands (75.1%), and with the SVM algorithm applied to eight bands (71.0%). In general, ML performed better than SVM. Despite the relatively low number of spectral bands, we achieved moderately good accuracy for basic vegetation mapping, which can be used in spatial planning and decision making. In a future interdisciplinary research study, we could merge the classification results with the dust adsorption capacity of individual species to assess the reduction of dust pollution by urban trees.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
hidden geographies
remote sensing
multispectral image
maximum likelihood
support vector machine
Megjelenés:European Journal of Geography. - 11 : 2 (2020), p. 33-46. -
További szerzők:Simon Edina (1981-) (ökológus) Szabó Szilárd (1974-) (geográfus)
Pályázati támogatás:TNN 123457 NKFIH
KH126481 NKFIH
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat
Rekordok letöltése1