Vision Reimagined: AI-Powered Breakthroughs in WiFi Indoor Imaging
This work addresses indoor imaging for robotics and IoT by introducing a novel AI approach, though it appears incremental as it builds on existing generative methods applied to a new domain.
The paper tackles WiFi indoor imaging by framing it as a multi-modal image generation task, achieving a shape reconstruction accuracy 275% higher than physical model-based methods and reducing the Frechet Inception Distance score by 82%.
Indoor imaging is a critical task for robotics and internet-of-things. WiFi as an omnipresent signal is a promising candidate for carrying out passive imaging and synchronizing the up-to-date information to all connected devices. This is the first research work to consider WiFi indoor imaging as a multi-modal image generation task that converts the measured WiFi power into a high-resolution indoor image. Our proposed WiFi-GEN network achieves a shape reconstruction accuracy that is 275% of that achieved by physical model-based inversion methods. Additionally, the Frechet Inception Distance score has been significantly reduced by 82%. To examine the effectiveness of models for this task, the first large-scale dataset is released containing 80,000 pairs of WiFi signal and imaging target. Our model absorbs challenges for the model-based methods including the non-linearity, ill-posedness and non-certainty into massive parameters of our generative AI network. The network is also designed to best fit measured WiFi signals and the desired imaging output. For reproducibility, we will release the data and code upon acceptance.