Výsledky vyhledávání - "Chmara, Sergej"

Mapping European Spruce Bark Beetle Infestation at Its Early Phase Using Gyrocopter-Mounted Hyperspectral Data and Field Measurements

Autor: Hellwig, Florian M., Stelmaszczuk-Gorska, Martina A., Dubois, Clémence, Wolsza, Marco, Truckenbrodt, Sina, Sagichewski, Herbert, Chmara, Sergej, Bannehr, Lutz, Lausch, Angela, Schmullius, Christiane

Publikováno v: Remote Sensing, Vol 13, Iss 4659, p 4659 (2021)

The prolonged drought of recent years combined with the steadily increasing bark beetle infestation (Ips typographus) is causing enormous damage in Germany’s spruce forests. This preliminary study investigates whether early spruce infestation by th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07f5480a711ec36597c248d7def6eaa8
https://doi.org/10.3390/rs13224659

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Tree Species Classification Based on Hybrid Ensembles of a Convolutional Neural Network (CNN) and Random Forest Classifiers

Autor: Knauer, Uwe, Rekowski, Cornelius Styp von, Stecklina, Marianne, Krokotsch, Tilman, Pham Minh, Tuan, Hauffe, Viola, Kilias, David, Ehrhardt, Ina, Sagischewski, Herbert, Chmara, Sergej, Seiffert, Udo

In this paper, we evaluate different popular voting strategies for fusion of classifier results. A convolutional neural network (CNN) and different variants of random forest (RF) classifiers were trained to discriminate between 15 tree species based

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______610::9c447989d91ae7b04fc9133076ee87e1
https://publica.fraunhofer.de/handle/publica/263078

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