We develop a graph active learning pipeline (GAP) to detect surface water and in-river sediment pixels in satellite images. The active learning approach is applied within the training process to optimally select specific pixels to generate a hand-labeled training set. Our method obtains higher accuracy with far fewer training pixels than both standard and deep learning models. According to our experiments, our GAP trained on a set of 3270 pixels reaches a better accuracy than the neural network method trained on 2.1 million pixels.
@article{arxiv.2306.10440,
title = {Graph-based Active Learning for Surface Water and Sediment Detection in Multispectral Images},
author = {Bohan Chen and Kevin Miller and Andrea L. Bertozzi and Jon Schwenk},
journal= {arXiv preprint arXiv:2306.10440},
year = {2023}
}
Comments
4 pages, 2 figures, 1 table. Accepted by IGARSS 2023