Mobile Imaging Using Acoustic Signals

The ability to image an object has profound applications for society. With the unprecedented growth of smartphone popularity, smartphone-based imaging is very appealing. While smartphone cameras are getting increasingly powerful, they are still lacking in many scenarios, such as imaging in darkness or under obstruction. RF based imaging is an interesting alternative. Recently, [2,3,4] pioneering RF imaging approaches were developed based on mobile devices, such as drones, RFID arrays, and millimeter-wave transceivers. However, it still requires special hardware and significant effort to set up for applying these approaches.