Konrad J. Wessels

Publication Activity (10 Years)

Years Active: 2003-2019
Publications (10 Years): 7

Top Topics

Change Detection

Extended Kalman Filter

Top Venues

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

Int. J. Appl. Earth Obs. Geoinformation

Publications

Konrad J. Wessels, Renaud Mathieu, Nichola M. Knox, Russell Main, Laven Naidoo, Karen C. Steenkamp
Mapping and Monitoring Fractional Woody Vegetation Cover in the Arid Savannas of Namibia Using LiDAR Training Data, Machine Learning, and ALOS PALSAR Data. Remote. Sens. 11 (22) (2019)
Precious Mahlangu, Renaud Mathieu, Konrad J. Wessels, Laven Naidoo, Michel M. Verstraete, Gregory Asner, Russell Main
Indirect Estimation of Structural Parameters in South African Forests Using MISR-HR and LiDAR Remote Sensing Data. Remote. Sens. 10 (10) (2018)
Brian P. Salmon, Waldo Kleynhans, Jan C. Olivier, Frans van den Bergh, Konrad J. Wessels
A modified temporal criterion to meta-optimize the extended Kalman filter for land cover classification of remotely sensed time series. Int. J. Appl. Earth Obs. Geoinformation 67 (2018)
Brian P. Salmon, Damien S. Holloway, Waldo Kleynhans, J. Corné Olivier, Konrad J. Wessels
Applying Model Parameters as a Driving Force to a Deterministic Nonlinear System to Detect Land Cover Change. IEEE Trans. Geosci. Remote. Sens. 55 (12) (2017)
Laven Naidoo, Renaud Mathieu, Russell Main, Konrad J. Wessels, Gregory P. Asner
L-band Synthetic Aperture Radar imagery performs better than optical datasets at retrieving woody fractional cover in deciduous, dry savannahs. Int. J. Appl. Earth Obs. Geoinformation 52 (2016)
Konrad J. Wessels, Frans van den Bergh, David P. Roy, Brian P. Salmon, Karen C. Steenkamp, Bryan MacAlister, Derick Swanepoel, Debbie Jewitt
Rapid Land Cover Map Updates Using Change Detection and Robust Random Forest Classifiers. Remote. Sens. 8 (11) (2016)
Russell Main, Renaud Mathieu, Waldo Kleynhans, Konrad J. Wessels, Laven Naidoo, Gregory P. Asner
Hyper-Temporal C-Band SAR for Baseline Woody Structural Assessments in Deciduous Savannas. Remote. Sens. 8 (8) (2016)
Waldo Kleynhans, Brian P. Salmon, Konrad J. Wessels, J. Corne Olivier
Rapid detection of new and expanding human settlements in the Limpopo province of South Africa using a spatio-temporal change detection method. Int. J. Appl. Earth Obs. Geoinformation 40 (2015)
Joseph McGlinchy, Jan A. N. van Aardt, Barend Erasmus, Gregory P. Asner, Renaud Mathieu, Konrad J. Wessels, David E. Knapp, Ty Kennedy-Bowdoin, Harvey E. Rhody, John P. Kerekes, Emmett J. Ientilucci, Jiaying Wu, Diane Sarrazin, Kerry Cawse-Nicholson
Extracting Structural Vegetation Components From Small-Footprint Waveform Lidar for Biomass Estimation in Savanna Ecosystems. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 7 (2) (2014)
Laven Naidoo, Renaud Mathieu, Russell Main, Waldo Kleynhans, Konrad J. Wessels, Gregory P. Asner, Brigitte Leblon
The assessment of data mining algorithms for modelling Savannah Woody cover using multi-frequency (X-, C- and L-band) synthetic aperture radar (SAR) datasets. IGARSS (2014)
Waldo Kleynhans, Brian P. Salmon, Konrad J. Wessels
A novel spatio-temporal change detection approach using hyper-temporal satellite data. IGARSS (2014)
Philemon L. Tsela, Konrad J. Wessels, Joel Botai, Sally Archibald, Derick Swanepoel, Karen C. Steenkamp, Philip Frost
Validation of the Two Standard MODIS Satellite Burned-Area Products and an Empirically-Derived Merged Product in South Africa. Remote. Sens. 6 (2) (2014)
Brian P. Salmon, Jan C. Olivier, Waldo Kleynhans, Konrad J. Wessels
Using the butterfly effect in a deterministic non-linear system to detect Land cover change. IGARSS (2014)
Brian P. Salmon, Waldo Kleynhans, Frans van den Bergh, Jan C. Olivier, Willem J. Marais, Trienko L. Grobler, Konrad J. Wessels
Meta-Optimization of the Extended Kalman Filter's Parameters Through the Use of the Bias Variance Equilibrium Point Criterion. IEEE Trans. Geosci. Remote. Sens. 52 (8) (2014)
Russell Main, Renaud Mathieu, Waldo Kleynhans, Konrad J. Wessels, Laven Naidoo, Gregory P. Asner
Woody cover assessments in a Southern African savanna, using hyper-temporal C-band ASAR-WS data. IGARSS (2014)
Brian P. Salmon, Waldo Kleynhans, Jan C. Olivier, Willem C. Olding, Konrad J. Wessels, Frans van den Bergh
A modified temporal approach to meta-optimizing an Extended Kalman Filter's parameters. IGARSS (2014)
Brian Paxton Salmon, Waldo Kleynhans, Frans van den Bergh, Jan C. Olivier, Trienko L. Grobler, Konrad J. Wessels
Land Cover Change Detection Using the Internal Covariance Matrix of the Extended Kalman Filter Over Multiple Spectral Bands. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 6 (3) (2013)
Brian P. Salmon, Konrad J. Wessels, Frans van den Bergh, Karen C. Steenkamp, Waldo Kleynhans, Derick Swanepoel, David P. Roy, Valeriy Kovalskyy
Evaluation of rule-based classifier for Landsat-based automated land cover mapping in South Africa. IGARSS (2013)
Waldo Kleynhans, Brian P. Salmon, Konrad J. Wessels, J. Corne Olivier
A spatio-temporal autocorrelation change detection approach using hyper-temporal satellite data. IGARSS (2013)
Karen C. Steenkamp, Konrad J. Wessels, Frans van den Bergh, Graeme McFerren, Philip Frost, Cheewai Lai, Derick Swanepoel
Quantitative comparison of fire danger index performance using fire activity. IGARSS (2012)
Brian P. Salmon, Waldo Kleynhans, Frans van den Bergh, Jan C. Olivier, Willem J. Marais, Trienko L. Grobler, Konrad J. Wessels
A search algorithm to meta-optimize the parameters for an extended KALMAN FILTER TO IMPROVE CLASSIFICATION ON HYPER-TEMPORAL IMAGES. IGARSS (2012)
Brian P. Salmon, Waldo Kleynhans, Frans van den Bergh, Jan C. Olivier, Konrad J. Wessels
Detecting land cover change by evaluating the internal covariance matrix of the Extended Kalman Filter. IGARSS (2012)
Waldo Kleynhans, Brian P. Salmon, Jan C. Olivier, Frans van den Bergh, Konrad J. Wessels, Trienko L. Grobler, Karen C. Steenkamp
Land Cover Change Detection Using Autocorrelation Analysis on MODIS Time-Series Data: Detection of New Human Settlements in the Gauteng Province of South Africa. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 5 (3) (2012)
Konrad J. Wessels, Barend Erasmus, Matthew S. Colgan, Gregory P. Asner, Renaud Mathieu, Wayne Twine, Jan van Aardt, Izak Smit
Impacts of communal fuelwood extraction on LiDAR-estimated biomass patterns of savanna woodlands. IGARSS (2012)
Waldo Kleynhans, Brian P. Salmon, Jan C. Olivier, Frans van den Bergh, Konrad J. Wessels, Trienko L. Grobler
Detecting land cover change using a sliding window temporal autocorrelation approach. IGARSS (2012)
Brian P. Salmon, Jan C. Olivier, Konrad J. Wessels, Waldo Kleynhans, Frans van den Bergh, Karen C. Steenkamp
Unsupervised Land Cover Change Detection: Meaningful Sequential Time Series Analysis. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 4 (2) (2011)
Brian P. Salmon, J. Corne Olivier, Waldo Kleynhans, Konrad J. Wessels, Frans van den Bergh, Karen C. Steenkamp
The use of a Multilayer Perceptron for detecting new human settlements from a time series of MODIS images. Int. J. Appl. Earth Obs. Geoinformation 13 (6) (2011)
Waldo Kleynhans, Brian P. Salmon, Jan C. Olivier, Konrad J. Wessels, Frans van den Bergh
A comparison of feature extraction methods within a spatio-temporal land cover change detection framework. IGARSS (2011)
Hermanus Carel Myburgh, J. Corne Olivier, Renaud Mathieu, Konrad J. Wessels, Brigitte Leblon, Gregory Asner, Joseph Buckley
SAR-to-LiDAR mapping for tree volume prediction in the Kruger National Park. IGARSS (2011)
Waldo Kleynhans, Jan C. Olivier, Konrad J. Wessels, Brian P. Salmon, Frans van den Bergh, Karen C. Steenkamp
Detecting Land Cover Change Using an Extended Kalman Filter on MODIS NDVI Time-Series Data. IEEE Geosci. Remote. Sens. Lett. 8 (3) (2011)
Waldo Kleynhans, Brian P. Salmon, Jan C. Olivier, Konrad J. Wessels, Frans van den Bergh
An autocorrelation analysis approach to detecting land cover change using hyper-temporal time-series data. IGARSS (2011)
Brian P. Salmon, Waldo Kleynhans, Frans van den Bergh, Jan C. Olivier, Willem J. Marais, Konrad J. Wessels
Meta-optimization of the Extended Kalman Filter's parameters for improved feature extraction on hyper-temporal images. IGARSS (2011)
Kerry Cawse-Nicholson, Michael Sears, Amandine Robin, Steven B. Damelin, Konrad J. Wessels, Frans van den Bergh, Renaud Mathieu
Using Random Matrix Theory to determine the number of endmembers in a hyperspectral image. WHISPERS (2010)
Waldo Kleynhans, J. Corné Olivier, Konrad J. Wessels, Frans van den Bergh, Brian P. Salmon, Karen C. Steenkamp
Improving Land Cover Class Separation Using an Extended Kalman Filter on MODIS NDVI Time-Series Data. IEEE Geosci. Remote. Sens. Lett. 7 (2) (2010)
Joseph McGlinchy, Jan van Aardt, Harvey E. Rhody, John P. Kerekes, Emmett Ientiluci, Gregory Asner, David E. Knapp, Renaud Mathieu, Ty Kennedy-Bowdoin, Barend Erasmus, Konrad J. Wessels, Izak Smit, Jiaying Wu, Diane Sarrazin
Extracting strctural land cover components using small-footprint waveform lidar data. IGARSS (2010)
Waldo Kleynhans, J. Corne Olivier, Brian P. Salmon, Konrad J. Wessels, Frans van den Bergh
A spatio-temporal approach to detecting land cover change using an extended kalman filter on modis time series data. IGARSS (2010)
Brian P. Salmon, Jan C. Olivier, Waldo Kleynhans, Konrad J. Wessels, Frans van den Bergh
Automated land cover change detection: the quest for meaningful high temporal time series extraction. IGARSS (2010)
Philemon L. Tsela, Paul van Helden, Philip Frost, Konrad J. Wessels, Sally Archibald
Validation of the MODIS burned-area products across different biomes in South Africa. IGARSS (2010)
Renaud Mathieu, Konrad J. Wessels, Gregory Asner, David E. Knapp, Jan van Aardt, Moses Azong Cho, Barend Erasmus, Izak Smit
Tree Cover, Tree Height and Bare Soil Cover Differences along a Land Use Degradation Gradient in Semi-arid Savannas, South Africa. IGARSS (2) (2009)
Jiaying Wu, Jan van Aardt, Gregory Asner, Renaud Mathieu, Ty Kennedy-Bowdoin, David E. Knapp, Konrad J. Wessels, Barend Erasmus, Izak Smit
Connecting the Dots between Laser Waveforms and Herbaceous Biomass for Assessment of Land Degradation using Small-footprint Waveform LiDAR Data. IGARSS (2) (2009)
Konrad J. Wessels, Karen C. Steenkamp, Graham Von Maltitz, Sally Archibald, Robert Scholes, Simeon Miteff, Asheer Bachoo
Remotely Sensed Phenology for Mapping Biomes and Vegetation Functional Types. IGARSS (4) (2009)
Waldo Kleynhans, J. Corne Olivier, Brian P. Salmon, Konrad J. Wessels, Frans van den Bergh
Improving NDVI Time Series Class Separation using an Extended Kalman Filter. IGARSS (4) (2009)
Jolene Fisher, Barend Erasmus, Edward Witkowski, Jan van Aardt, Gregory Asner, Ty Kennedy-Bowdoin, David E. Knapp, Ruth Emerson, James Jacobson, Renaud Mathieu, Konrad J. Wessels
Three-dimensional Woody Vegetation Structure across Different Land-use Types and -land-use Intensities in a Semi-arid Savanna. IGARSS (2) (2009)
Brian P. Salmon, Jan C. Olivier, Waldo Kleynhans, Konrad J. Wessels, Frans van den Bergh
The Quest for Automated Land Cover Change Detection using Satellite Time Series Data. IGARSS (4) (2009)
Karen C. Steenkamp, Konrad J. Wessels, Sally Archibald, Graham Von Maltitz
Long-Term Phenology and Variability of Southern African Vegetation. IGARSS (3) (2008)
Jan C. Olivier, Konrad J. Wessels, Seare Araya
Detection of Land Cover Change Using an Artificial Neural Network Within a Temporal Sliding Windowon Modis Time Series Data. IGARSS (4) (2008)
Konrad J. Wessels, Stephen D. Prince, J. Small
Monitoring land degradation in Southern Africa based on net primary productivity. IGARSS (2003)