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Browsing Research Articles (Geography, Geoinformatics and Meteorology) by Author

Browsing Research Articles (Geography, Geoinformatics and Meteorology) by Author "Mafanya, Madodomzi"

Now showing items 1-4 of 4

An assessment of image classifiers for generating machine-learning training samples for mapping the invasive Campuloclinium macrocephalum (Less.) DC (pompom weed) using DESIS hyperspectral imagery

Mafanya, Madodomzi; Tsele, Philemon; Zengeya, Tsungai A.; Ramoelo, Abel (Elsevier, 2022-03)

Machine-learning algorithms may require large numbers of reference samples to train depending on the spatial and spectral heterogeneity of the mapping area. Acquiring these reference samples using traditional field data ...
Evaluating pixel and object based image classification techniques for mapping plant invasions from UAV derived aerial imagery : Harrisia pomanensis as a case study

Mafanya, Madodomzi; Tsele, Philemon; Botai, Joel Ongego; Manyama, Phetole; Swart, Barend; Monate, Thabang (Elsevier, 2017-07)

Invasive alien plants (IAPs) not only pose a serious threat to biodiversity and water resources but also have impacts on human and animal wellbeing. To support decision making in IAPs monitoring, semi-automated image ...
Radiometric calibration framework for ultra-high-resolution UAV-derived orthomosaics for large-scale mapping of invasive alien plants in semi-arid woodlands : Harrisia pomanensis as a case study

Mafanya, Madodomzi; Tsele, Philemon; Botai, Joel Ongego; Manyama, Phetole; Chirima, Johannes George; Monate, Thabang (Taylor and Francis, 2018)

Orthomosaics derived from consumer grade digital cameras on board unmanned aerial vehicles (UAVs) are increasingly being used for biodiversity monitoring and remote sensing of the environment. To have lasting quantitative ...
Validation of LAI, chlorophyll and FVC biophysical estimates from sentinel-2 level 2 prototype processor over a heterogeneous savanna and grassland environment in South Africa

Tsele, Philemon; Ramoelo, Abel; Qabaqaba, Mcebisi; Mafanya, Madodomzi; Chirima, Johannes George (Taylor and Francis, 2022)

The Sentinel-2 Level 2 Prototype Processor (SL2P) allows the generation of biophysical estimates at high spatiotemporal resolution from Sentinel-2 imagery and could be a solution for generating products in natural environments. ...

Now showing items 1-4 of 4

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Browsing Research Articles (Geography, Geoinformatics and Meteorology) by Author "Mafanya, Madodomzi"

Browsing Research Articles (Geography, Geoinformatics and Meteorology) by Author "Mafanya, Madodomzi"

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