Using Acoustic Signal and Image to Achieve Accurate Indoor Localization.

Location information plays a key role in pervasive computing and application, especially indoor location-based service, even though a mass of systems have been proposed, an accurate and practical indoor localization system remains unsettled. To tackle this issue, in this paper, we present a new localization scheme, , combining acoustic ignals and mages to achieve accurate and robust indoor locaion srvice. Relying on a pre-deployed platform of acoustic sources with different frequencies, using proactively generated Doppler effect signals, could track relative directions between the phone and the sources.