Supervising Remote Sensing Change Detection Models with 3D Surface Semantics

• URL: http://arxiv.org/abs/2202.13251v1
• Date: Sat, 26 Feb 2022 23:35:43 GMT
• Title: Supervising Remote Sensing Change Detection Models with 3D Surface Semantics
• Authors: Isaac Corley, Peyman Najafirad
• Abstract summary: We propose Contrastive Surface-Image Pretraining (CSIP) for joint learning using optical RGB and above ground level (AGL) map pairs. We then evaluate these pretrained models on several building segmentation and change detection datasets to show that our method does, in fact, extract features relevant to downstream applications.
• Score: 1.8782750537161614
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Remote sensing change detection, identifying changes between scenes of the same location, is an active area of research with a broad range of applications. Recent advances in multimodal self-supervised pretraining have resulted in state-of-the-art methods which surpass vision models trained solely on optical imagery. In the remote sensing field, there is a wealth of overlapping 2D and 3D modalities which can be exploited to supervise representation learning in vision models. In this paper we propose Contrastive Surface-Image Pretraining (CSIP) for joint learning using optical RGB and above ground level (AGL) map pairs. We then evaluate these pretrained models on several building segmentation and change detection datasets to show that our method does, in fact, extract features relevant to downstream applications where natural and artificial surface information is relevant.

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