[2211.14654] Unsupervised Wildfire Change Detection based on Contrastive Learning
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Computer Science > Computer Vision and Pattern Recognition

arXiv:2211.14654 (cs)
[Submitted on 26 Nov 2022]

Title:Unsupervised Wildfire Change Detection based on Contrastive Learning

Authors:Beichen Zhang, Huiqi Wang, Amani Alabri, Karol Bot, Cole McCall, Dale Hamilton, Vít Růžička
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Abstract:The accurate characterization of the severity of the wildfire event strongly contributes to the characterization of the fuel conditions in fire-prone areas, and provides valuable information for disaster response. The aim of this study is to develop an autonomous system built on top of high-resolution multispectral satellite imagery, with an advanced deep learning method for detecting burned area change. This work proposes an initial exploration of using an unsupervised model for feature extraction in wildfire scenarios. It is based on the contrastive learning technique SimCLR, which is trained to minimize the cosine distance between augmentations of images. The distance between encoded images can also be used for change detection. We propose changes to this method that allows it to be used for unsupervised burned area detection and following downstream tasks. We show that our proposed method outperforms the tested baseline approaches.
Comments: 5 pages (+3 in appendix), 3 figures (+2 in appendix). Artificial Intelligence for Humanitarian Assistance and Disaster Response Workshop (AI+HADR 2022), 36th Conference on Neural Information Processing Systems (NeurIPS 2022)
Subjects: Computer Vision and Pattern Recognition (cs.CV); Machine Learning (cs.LG)
Cite as: arXiv:2211.14654 [cs.CV]
  (or arXiv:2211.14654v1 [cs.CV] for this version)
  https://doi.org/10.48550/arXiv.2211.14654

Submission history

From: Vít Růžička [view email]
[v1] Sat, 26 Nov 2022 20:13:14 UTC (5,396 KB)
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