Comparison Study: Glacier Calving Front Delineation in Synthetic Aperture Radar Images With Deep Learning

• URL: http://arxiv.org/abs/2501.05281v1
• Date: Thu, 09 Jan 2025 14:43:36 GMT
• Title: Comparison Study: Glacier Calving Front Delineation in Synthetic Aperture Radar Images With Deep Learning
• Authors: Nora Gourmelon, Konrad Heidler, Erik Loebel, Daniel Cheng, Julian Klink, Anda Dong, Fei Wu, Noah Maul, Moritz Koch, Marcel Dreier, Dakota Pyles, Thorsten Seehaus, Matthias Braun, Andreas Maier, Vincent Christlein,
• Abstract summary: This study presents the first comparison of Deep Learning systems on a common calving front benchmark dataset.<n>The best DL model's outputs deviate 221 m on average, while the average deviation of the human annotators is 38 m.<n>This significant difference shows that current DL systems do not yet match human performance and that further research is needed to enable fully automated monitoring of glacier calving fronts.
• Score: 11.298727820998566
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Calving front position variation of marine-terminating glaciers is an indicator of ice mass loss and a crucial parameter in numerical glacier models. Deep Learning (DL) systems can automatically extract this position from Synthetic Aperture Radar (SAR) imagery, enabling continuous, weather- and illumination-independent, large-scale monitoring. This study presents the first comparison of DL systems on a common calving front benchmark dataset. A multi-annotator study with ten annotators is performed to contrast the best-performing DL system against human performance. The best DL model's outputs deviate 221 m on average, while the average deviation of the human annotators is 38 m. This significant difference shows that current DL systems do not yet match human performance and that further research is needed to enable fully automated monitoring of glacier calving fronts. The study of Vision Transformers, foundation models, and the inclusion and processing strategy of more information are identified as avenues for future research.

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