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Detection of macroplastic on beaches using drones and object-based image analysis

Torsvik, Bjørn Maaløe; Poulsen, Robert Nøddebo; van Bavel, Bert; Gundersen, Hege; Hancke, Kasper
Research report
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7553-2020+high.pdf (46.00Mb)
URI
https://hdl.handle.net/11250/2720470
Date
2020
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Abstract
This pilot study demonstrates UAV-based image collection being a promising technology for plastic detection in beach zones and we recommend object-based image analysis and UAV-based data collection being further developed for marine litter detection. Objects of plastic at sizes down to 3.5 x 3.5 cm were segmented and classified successfully corresponding to approximately 4 times the pixel width of the classified images. Overall conclusions should be approached with some caution, due to the relatively few ground truth data points (13-37 geolocated plastic pieces) and their different characteristics regarding color and size.
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Project Manager Kasper Hancke
Publisher
Norsk institutt for vannforskning
Series
NIVA-rapport;7553
Copyright
© Norsk institutt for vannforskning/Norwegian Institute for Water Research. The publication can be cited freely if the source is stated.

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