Bridging the Domain Gap in DAS: Adapting Vision Foundation Models for Infrastructure Security
Publication Date: 7/1/2026
Event: 31st OptoElectronics and Communications Conference (OECC 2026)
Reference: Tu1B-3: 297-298, 2026
Authors: Yangmin Ding, NEC Laboratories America, Inc.; Sarper Ozharar, NEC Laboratories America, Inc.; Ting Wang, NEC Laboratories America, Inc.
Abstract: Distributed Acoustic Sensing may suffer severe cross-day domain shift. We bridge this gap by encoding 1D phase signals into physics-informed 3-channel gradient tensors and adapting Vision Foundation Models (ViT-B/16), achieving superior threat detection over baselines.
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