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Akpona Okujeni
Akpona Okujeni
Helmholtz Center Potsdam, GFZ German Research Center for Geosciences
Geverifieerd e-mailadres voor gfz-potsdam.de
Titel
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The EnMAP-Box—A toolbox and application programming interface for EnMAP data processing
S van der Linden, A Rabe, M Held, B Jakimow, PJ Leitão, A Okujeni, ...
Remote Sensing 7 (9), 11249-11266, 2015
2632015
CEFLES2: the remote sensing component to quantify photosynthetic efficiency from the leaf to the region by measuring sun-induced fluorescence in the oxygen absorption bands
U Rascher, G Agati, L Alonso, G Cecchi, S Champagne, R Colombo, ...
Biogeosciences 6 (7), 1181-1198, 2009
1782009
National-scale mapping of building height using Sentinel-1 and Sentinel-2 time series
D Frantz, F Schug, A Okujeni, C Navacchi, W Wagner, S van der Linden, ...
Remote Sensing of Environment 252, 112128, 2021
1752021
Support vector regression and synthetically mixed training data for quantifying urban land cover
A Okujeni, S van der Linden, L Tits, B Somers, P Hostert
Remote Sensing of Environment 137, 184-197, 2013
1712013
Influence of neighbourhood information on ‘Local Climate Zone’mapping in heterogeneous cities
ML Verdonck, A Okujeni, S van der Linden, M Demuzere, R De Wulf, ...
International Journal of Applied Earth Observation and Geoinformation 62 …, 2017
1052017
Mapping patterns of urban development in Ouagadougou, Burkina Faso, using machine learning regression modeling with bi-seasonal Landsat time series
F Schug, A Okujeni, J Hauer, P Hostert, JØ Nielsen, S van der Linden
Remote Sensing of Environment 210, 217-228, 2018
972018
Extending the vegetation–impervious–soil model using simulated EnMAP data and machine learning
A Okujeni, S van der Linden, P Hostert
Remote Sensing of Environment 158, 69-80, 2015
942015
Mapping urban-rural gradients of settlements and vegetation at national scale using Sentinel-2 spectral-temporal metrics and regression-based unmixing with synthetic training data
F Schug, D Frantz, A Okujeni, S van der Linden, P Hostert
Remote Sensing of Environment 246, 111810, 2020
782020
Ensemble Learning From Synthetically Mixed Training Data for Quantifying Urban Land Cover With Support Vector Regression
A Okujeni, S van der Linden, S Suess, P Hostert
IEEE Journal of Selected Topics in Applied Earth Observations and Remote …, 2017
622017
A generalized regression-based unmixing model for mapping forest cover fractions throughout three decades of Landsat data
C Senf, J Laštovička, A Okujeni, M Heurich, S van der Linden
Remote Sensing of Environment 240, 111691, 2020
582020
Characterizing 32 years of shrub cover dynamics in southern Portugal using annual Landsat composites and machine learning regression modeling
S Suess, S van der Linden, A Okujeni, P Griffiths, PJ Leitão, M Schwieder, ...
Remote Sensing of Environment 219, 353-364, 2018
572018
Generalizing machine learning regression models using multi-site spectral libraries for mapping vegetation-impervious-soil fractions across multiple cities
A Okujeni, F Canters, SD Cooper, J Degerickx, U Heiden, P Hostert, ...
Remote Sensing of Environment 216, 482-496, 2018
532018
Quantifying drought effects in Central European grasslands through regression-based unmixing of intra-annual Sentinel-2 time series
K Kowalski, A Okujeni, M Brell, P Hostert
Remote Sensing of Environment 268, 112781, 2022
482022
A comparison of advanced regression algorithms for quantifying urban land cover
A Okujeni, S Van der Linden, B Jakimow, A Rabe, J Verrelst, P Hostert
Remote Sensing 6 (7), 6324-6346, 2014
472014
Imaging Spectroscopy of Urban Environments
S van der Linden, A Okujeni, F Canters, J Degerickx, U Heiden, P Hostert, ...
Surveys in Geophysics, 1-18, 2018
462018
A Novel Spectral Library Pruning Technique for Spectral Unmixing of Urban Land Cover
J Degerickx, A Okujeni, MD Iordache, M Hermy, S van der Linden, ...
Remote Sensing 9 (6), 565, 2017
432017
Disentangling fractional vegetation cover: Regression-based unmixing of simulated spaceborne imaging spectroscopy data
S Cooper, A Okujeni, C Jänicke, M Clark, S van der Linden, P Hostert
Remote Sensing of Environment 246, 111856, 2020
392020
Berlin-Urban-Gradient dataset 2009-An EnMAP Preparatory Flight Campaign (Datasets)
A Okujeni, S Van Der Linden, P Hostert
GFZ Data Services, 2016
362016
Monitoring natural ecosystem and ecological gradients: Perspectives with EnMAP
PJ Leitão, M Schwieder, S Suess, A Okujeni, LS Galvão, S Linden, ...
Remote Sensing 7 (10), 13098-13119, 2015
362015
Brightness gradient-corrected hyperspectral image mosaics for fractional vegetation cover mapping in northern California
C Jänicke, A Okujeni, S Cooper, M Clark, P Hostert, S van der Linden
Remote Sensing Letters 11 (1), 1-10, 2020
332020
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