Indoor positioning system using digital audio watermarkingNov 1, 2011·Yuta Nakashima,Ryosuke Kaneto,Noboru Babaguchi· 0 min read Cite DOITypeJournal articlePublicationIEICE Trans. Information and SystemsLast updated on Nov 1, 2011 ← Extracting intentionally captured regions using point trajectories Nov 1, 2011Automatic generation of privacy-protected videos using background estimation Jul 1, 2011 →