Konrad J. Wessels

47 papers C 21Journal 17Unranked 9

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