研究进展一 声波在不同介质中的传播差异 Top Mic (Mic 2) Back Surface Path 4 of the Phone ·利用双麦克风接收手指反射声音的到达时 Path 2 间差异，分析手指触摸的位置 Path 5 -、Pah3 Structure path- Rear Speaker ·利用声音在空气与手机壳中传播的速度差 Path 1 LOS air path - 月eflection air path-,-+ Bottom Mic (Mic 1) 异，分析手指触摸的位置 ×10 15 x10 +←Pah1 and Path3 301,22510的 10 日3.1.7x0与 -Path 6 ←Path5 257 513 769 256 512 766 102 Samples Samples (a)Bottom microphone(Mic 1) (b)Top microphone (Mic 2) [1]Ke Sun,Ting Zhao,Wei Wang,Lei Xie,VSkin:Sensing Touch Gestures on Surfaces of Mobile Devices Using Acoustic Signals,in Proceedings of the 24th Annual International Conference on Mobile Computing and Networking,2018
ei~: 5W0+w`K;? • mĘƘbƔßäÙݳ¡ƒĚoűé Ƅ¹Ä5jøÙÝŘâĚmŃ • mĘ¡ƒĩćVÙõ¢>kãĚŻÀ¹ Ä5jøÙÝŘâĚmŃ [1] Ke Sun, Ting Zhao, Wei Wang, Lei Xie, VSkin: Sensing Touch Gestures on Surfaces of Mobile Devices Using Acoustic Signals, in Proceedings of the 24th Annual International Conference on Mobile Computing and Networking, 2018
研究进展一 声波的反射、射 ·测量人脸的不同位置对声音的反射影响 使用FMCW技术同时区分多个反射路径 的传播特性，辅助基于视觉的用户认证 Face Valid Area Detected Face Area Emitted Signal Received Signal Reference Signal Detected Facial max Landmarks .Authentication Result DENIEDr Segmented Signal (Amplified) Direct Path Face Region Background Time DILETE TRAN ON [1]Bing Zhou,Jay Lohokare,Ruipeng Gao,Fan Ye,EchoPrint:Two-factor Authentication using Vision and Acoustics on Smartphones,in Proceedings of the 24th Annual International Conference on Mobile Computing and Networking,2018
ei~: 5W`%9s9 • ĊƁeňĚ;mŃ²¡ƒĚ³É5 sĘ15Úôézj¦W³ŨË ĚkãĒÑ5ŮuFŕŖĚĘ׌ŝ [1] Bing Zhou, Jay Lohokare, Ruipeng Gao, Fan Ye, EchoPrint: Two-factor Authentication using Vision and Acoustics on Smartphones, in Proceedings of the 24th Annual International Conference on Mobile Computing and Networking, 2018
研究进展 一声波的多普勒效应 ·利用用户的不同动作对于单频超声波信号的多普勒影响，对用户的 不良驾驶习惯进行检测。 喷 14 (a)Normal driving (b)Nodding (a)Normal driving actions (c)Operating SW (d)Yawning [1]Yadong Xie,Fan Li,Yue Wu,Song Yang,Yu Wang,D3-Guard:Acoustic-based Drowsy Driving Detection Using Smartphones,in Proceedings of IEEE Conference on Computer Communications,2019
ei~: 5W`6N"L> • mĘĘ×Ě;tr²F{Ɠť¡ĉu̦îwÉ5²Ę×Ě ;ŋƖƕBÓŵŎþĊƟ [1] Yadong Xie, Fan Li, Yue Wu, Song Yang, Yu Wang, D3-Guard: Acoustic-based Drowsy Driving Detection Using Smartphones, in Proceedings of IEEE Conference on Computer Communications, 2019
7 典型案例介绍
典型案例个绍一手势微运动感知 ·如何使用商用的设备搭配软件来实现手势的微动作感知？？ Symphony 29 Cello Suite no Fantasia and Fu Flute Sonata in Partita no.5. Google Soli使用60GHz毫米波感知手势 [1]Wei Wang,Alex X Liu,Ke Sun,Device-free gesture tracking using acoustic signals,in Proceedings of the 22nd Annual International Conference on Mobile Computing and Networking,2016
1S3n H!D} Gc • ªpsĘĘĚŜ¤áſŬhö¯ĕÙvĚÎtrÔġ77 +GGAD?3GDCsĘ" +,PĆijĉÔġÙv [1] Wei Wang, Alex X Liu, Ke Sun, Device-free gesture tracking using acoustic signals, in Proceedings of the 22nd Annual International Conference on Mobile Computing and Networking, 2016