Paper Info
Title
Influence of endmember spectra on scaling effect of vegetation cover estimationwith NDVI.
Abstract
Fraction of vegetation cover (FVC) retrieved by NDVI-isoline based linear mixture model (LMM) suffers from systematic biases due to difference in spatial resolution among sensors, known as 'scaling effect'. Scaling effect of the FVC has been investigated analytically in a previous work under the two-endmember assumption. It implies that the scaling effect (systematic bias) will be minimized by using a certain combinations of endmember spectra. The objective of this study is to examine influence of endmember spectra on the scaling effect of FVC with LANDSAT7/ETM+ data. The results demonstrated that there exists endmember spectrum of vegetation and non-vegetation which mitigate the scaling effect. Findings in this study should contribute to cross-sensor calibration of FVC estimation necessary to improve consistency and accuracy in monitoring of vegetation cover.
Year
DOI
Venue
2011
10.1109/IGARSS.2011.6049826
IGARSS
Keywords
Field
DocType
geophysical signal processing,vegetation mapping,FVC retrieval,LANDSAT7 ETM+ data,NDVI,endmember spectra,linear mixture model,scaling effect,spatial resolution,systematic bias,vegetation cover estimation,vegetation cover fraction,Fraction of vegetation cover,NDVI isoline,endmember,linear mixture model,scaling effect
Endmember,Satellite,Vegetation,Computer science,Remote sensing,Normalized Difference Vegetation Index,Image resolution,Scaling,Mixture model,Calibration
Conference
ISSN
Citations 
PageRank 
2153-6996
1
0.48
References 
Authors
2
2
Name
Order
Citations
PageRank
Kenta Obata13715.95
Hiroki Yoshioka28323.06