4.7 Article

Coastal Marine Debris Detection and Density Mapping With Very High Resolution Satellite Imagery

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTARS.2022.3193993

关键词

Satellites; Satellite broadcasting; Sea measurements; Plastics; Spatial resolution; Image segmentation; Earth; Anomaly detection; machine learning; marine debris; satellite imagery analysis; semantic segmentation; very high resolution satellite imagery; WorldView-2; 3

资金

  1. Project Sea Unicorn by The Nippon Foundation
  2. Japan Advanced Science and Technology Organization for education
  3. human-resource and research (JASTO)
  4. Leave a Nest Company Ltd.

向作者/读者索取更多资源

This study uses satellite images and machine learning techniques to estimate the amount and type of marine debris on the beaches of southern Japan. The results show that Shannon's entropy computed from World-View 2 and 3 imagery can effectively detect and map coastal debris, even in areas without ground truth data.
Marine debris is a serious problem for marine ecosystems and related coastal activities. We carry out a study using in-situ debris clean-up data (collected by a local Japanese company) together with high spatial resolution satellite images to determine how well the satellite images can be used to estimate the amount and type of debris deposited on the beaches of the island in southern Japan. We use machine learning techniques to analyze the satellite images and find that Shannon's entropy computed from World-View 2 and 3 imagery from Maxar Corporation yields a useful detection and mapping of the coastal debris when compared with the in-situ clean-up data. We also assign a debris concentration to each satellite image pixel to visualize the distribution of the debris. The algorithm linking the satellite images to the ground truth clean-up data can now be used in areas, where no ground truth data are available.

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