Akpona Okujeni

According to our database, Akpona Okujeni authored at least 17 papers between 2014 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Mapping savannah woody vegetation at the species level with multispecral drone and hyperspectral EnMAP data.

Christina Karakizi, Akpona Okujeni, Eleni Sofikiti, Vasileios Tsironis, Athina Psalta, Konstantinos Karantzalos, Patrick Hostert, Elias Symeonakis

CoRR, 2024

Mapping Savannah Woody Vegetation at the Species Level with Multispectral Drone and Hyperspectral EnMAP Data.

Christina Karakizi, Akpona Okujeni, Eleni Sofikiti, Vasileios Tsironis, Athina Psalta, Konstantinos Karantzalos, Patrick Hostert, Elias Symeonakis

Proceedings of the IGARSS 2024, 2024

2023

EnMAP-Box: Imaging spectroscopy in QGIS.

Benjamin Jakimow, Andreas Janz, Fabian Thiel, Akpona Okujeni, Patrick Hostert, Sebastian van der Linden

SoftwareX, July, 2023

2021

Combining simulated hyperspectral EnMAP and Landsat time series for forest aboveground biomass mapping.

Sam Cooper, Akpona Okujeni, Dirk Pflugmacher, Sebastian van der Linden, Patrick Hostert

Int. J. Appl. Earth Obs. Geoinformation, 2021

2019

Comparing map-based and library-based training approaches for urban land-cover fraction mapping from Sentinel-2 imagery.

Frederik Priem, Akpona Okujeni, Sebastian van der Linden, Frank Canters

Int. J. Appl. Earth Obs. Geoinformation, 2019

2017

Subpixel Mapping of Urban Areas Using EnMAP Data and Multioutput Support Vector Regression.

Johannes Rosentreter, Ron Hagensieker, Akpona Okujeni, Ribana Roscher, Paul D. Wagner, Björn Waske

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017

Ensemble Learning From Synthetically Mixed Training Data for Quantifying Urban Land Cover With Support Vector Regression.

Akpona Okujeni, Sebastian van der Linden, Stefan Suess, Patrick Hostert

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017

A Novel Spectral Library Pruning Technique for Spectral Unmixing of Urban Land Cover.

Jeroen Degerickx, Akpona Okujeni, Marian-Daniel Iordache, Martin Hermy, Sebastian van der Linden, Ben Somers

Remote. Sens., 2017

Influence of neighbourhood information on 'Local Climate Zone' mapping in heterogeneous cities.

Marie-Leen Verdonck, Akpona Okujeni, Sebastian van der Linden, Matthias Demuzere, Robert R. De Wulf, Frieke Van Coillie

Int. J. Appl. Earth Obs. Geoinformation, 2017

Thermal evaluation of the local climate zone scheme in Belgium.

Marie-Leen Verdonck, Frieke Van Coillie, Robert R. de Wulf, Akpona Okujeni, Sebastian van der Linden, Matthias Demuzere, Hans Hooyberghs

Proceedings of the Joint Urban Remote Sensing Event, 2017

Optimizing mixed spectra generation for regression-based unmixing of land cover in urban areas.

Frederik Priem, Frank Canters, Akpona Okujeni, Sebastian van der Linden

Proceedings of the Joint Urban Remote Sensing Event, 2017

2015

Using Class Probabilities to Map Gradual Transitions in Shrub Vegetation from Simulated EnMAP Data.

Stefan Suess, Sebastian van der Linden, Akpona Okujeni, Pedro J. Leitão, Marcel Schwieder, Patrick Hostert

Remote. Sens., 2015

The EnMAP-Box - A Toolbox and Application Programming Interface for EnMAP Data Processing.

Sebastian van der Linden, Andreas Rabe, Matthias Held, Benjamin Jakimow, Pedro J. Leitão, Akpona Okujeni, Marcel Schwieder, Stefan Suess, Patrick Hostert

Remote. Sens., 2015

Monitoring Natural Ecosystem and Ecological Gradients: Perspectives with EnMAP.

Pedro J. Leitão, Marcel Schwieder, Stefan Suess, Akpona Okujeni, Lênio Soares Galvão, Sebastian van der Linden, Patrick Hostert

Remote. Sens., 2015

2014

A Comparison of Advanced Regression Algorithms for Quantifying Urban Land Cover.

Akpona Okujeni, Sebastian van der Linden, Benjamin Jakimow, Andreas Rabe, Jochem Verrelst, Patrick Hostert

Remote. Sens., 2014

Import Vector Machines for Quantitative Analysis of Hyperspectral Data.

Stefan Suess, Sebastian van der Linden, Pedro J. Leitão, Akpona Okujeni, Björn Waske, Patrick Hostert

IEEE Geosci. Remote. Sens. Lett., 2014

On the use of collaborative sparse regression in hyperspectral unmixing chains.

Marian-Daniel Iordache, Akpona Okujeni, Sebastian van der Linden, José M. Bioucas-Dias, Antonio Plaza, Ben Somers

Proceedings of the 6th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2014