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Deep Learning for Building Damage Assessment of the 2023 Turkey Earthquakes: A comparison of two remote sensing methods
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geoinformatics.
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geoinformatics.
2023 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Djupinlärning för bedömning av byggnadsskador efter jordbävningarna i Turkiet 2023 : En jämförelse av två fjärranalysmetoder (Swedish)
Abstract [en]

Current disaster response strategies are based on damage assessments carried out on the ground, which can be dangerous following a ä destructive event. Damage assessments can also be performed remotely using satellite imagery, but are usually carried out through visual interpretation, which can take a lot of time. This thesis explored a way of using artificial intelligence to automate remote damage assessment. We implemented a dual-task U-Net deep learning model, trained it with the xBD dataset for assessing building damage, and applied the model to pre- and post-event very high resolution satellite imagery of the February 6, 2023 earthquakes in Turkey. The results were compared to damage maps produced using a traditional object based method by calculating the F1 scores associated with the outputs of each method and ground truth data that we compiled. The study areas were parts of the two cities Kahramanmaraş and Antakya. The deep learning model almost only correctly identified undamaged buildings, achieving F1 scores of 0.95 during training as well as 0.93 and 0.83 in the damage assessments of Kahramanmaras and Antakya, respectively. For the other damage classes, the best result was the classification of destroyed buildings, both in training and in the study areas, with a F1-score of 0.45 in training and 0.16 in Kahramanmaraş. The deep learning model performed similarly to the object based method. Although the thesis did not yield good damage maps in the areas of interest, it had many limitations, and there is still a lot of potential for deep learning models to be useful in building damage assessment.

Place, publisher, year, edition, pages
2023.
Series
TRITA-ABE-MBT ; 23526
Keywords [en]
Deep learning, U-Net, Earthquake-induced building damage, VHR satellite imagery
Keywords [sv]
Djup maskininlärning, U-Net, Byggnadsskador, Jordbävning, Satellitbilder
National Category
Building Technologies Computer Sciences
Identifiers
URN: urn:nbn:se:kth:diva-335734OAI: oai:DiVA.org:kth-335734DiVA, id: diva2:1795168
Presentation
2023-06-09, 00:00 (English)
Supervisors
Examiners
Available from: 2023-09-07 Created: 2023-09-07 Last updated: 2023-09-07Bibliographically approved

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CiteExportLink to record
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Citation style
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