WiField combines a Maxwell-equation scattering model with a U-Net to identify multiple sub-wavelength objects from WiFi amplitude data, reporting 97% accuracy that falls to 71% or lower on held-out positions.
LiquImager: Fine-grained Liquid Identification and Container Imaging System with COTS WiFi Devices
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The Field-based Model: A New Perspective on RF-based Material Sensing
WiField combines a Maxwell-equation scattering model with a U-Net to identify multiple sub-wavelength objects from WiFi amplitude data, reporting 97% accuracy that falls to 71% or lower on held-out positions.