5 papers
DATTA: Domain-Adversarial Test-Time Adaptation for Cross-Domain WiFi-Based Human Activity Recognition
Julian Strohmayer, Rafael Sterzinger, Matthias Wödlinger +1
Cross-domain generalization is an open problem in WiFi-based sensing due to variations in environments, devices, and subjects, causing domain shifts in channel state information. T…
WiFlexFormer: Efficient WiFi-Based Person-Centric Sensing
Julian Strohmayer, Matthias Wödlinger, Martin Kampel
We propose WiFlexFormer, a highly efficient Transformer-based architecture designed for WiFi Channel State Information (CSI)-based person-centric sensing. We benchmark WiFlexFormer…
Through-Wall Imaging based on WiFi Channel State Information
Julian Strohmayer, Rafael Sterzinger, Christian Stippel +1
This work presents a seminal approach for synthesizing images from WiFi Channel State Information (CSI) in through-wall scenarios. Leveraging the strengths of WiFi, such as cost-ef…
Directional Antenna Systems for Long-Range Through-Wall Human Activity Recognition
Julian Strohmayer, Martin Kampel
WiFi Channel State Information (CSI)-based human activity recognition (HAR) enables contactless, long-range sensing in spatially constrained environments while preserving visual pr…
Data Augmentation Techniques for Cross-Domain WiFi CSI-based Human Activity Recognition
Julian Strohmayer, Martin Kampel
The recognition of human activities based on WiFi Channel State Information (CSI) enables contactless and visual privacy-preserving sensing in indoor environments. However, poor mo…