ActSonic: Recognizing Everyday Activities from Inaudible Acoustic Waves Around the Body

Saif Mahmud , Vineet Parikh , Qikang Liang , Ke Li , Ruidong Zhang , Ashwin Ajit , Vipin Gunda , Devansh Agarwal , François Guimbretière , and Cheng Zhang

Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), Accepted with minor revision 2024

arXiv Preprint

Supported by NSF 

SonicID: User Identification on Smart Glasses with Acoustic Sensing

Ke Li , Devansh Agarwal , Ruidong Zhang , Vipin Gunda , Tianjun Mo , Saif Mahmud , Boao Chen , François Guimbretière  , and Cheng Zhang

Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), Accepted with minor revision 2024

arXiv Preprint

Supported by NSF 

Ring-a-Pose: A Ring for Continuous Hand Pose Tracking

Tianhong Catherine Yu , Guilin Hu , Ruidong Zhang , Hyunchul Lim , Saif Mahmud , Chi-Jung Lee , Ke Li , Devansh Agarwal , Shuyang Nie , Jinseok Oh , François Guimbretière , and Cheng Zhang.

Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), Accepted with minor revision 2024

arXiv Preprint

Supported by NSF 

GazeTrak: Exploring Acoustic-based Eye Tracking on a Glass Frame

The 30th Annual International Conference on Mobile Computing and Networking (MobiCom 24), 

Ke Li, Ruidong Zhang, Boao Chen, Siyuan Chen, Sicheng Yin, Saif Mahmud, Francois Guimbretiere,  Cheng Zhang

Supported by NSF 

SeamPose: Repurposing Seams as Capacitive Sensors in a Shirt for Upper-Body Pose Tracking

Tianhong Catherine Yu, Manru Mary Zhang , Peter He, Chi-Jung Lee, Cassidy Cheesman, Saif Mahmud, Ruidong Zhang, François Guimbretière , and Cheng Zhang

The ACM Symposium on User Interface Software and Technology (UIST) ’24

arXiv Preprint

Supported by NSF 

MunchSonic: Tracking Fine-grained Dietary Actions through Active Acoustic Sensing on Eyeglasses

Saif Mahmud , Devansh Agarwal , Ashwin Ajit , Qikang Liang , Thalia Viranda , François Guimbretière , and Cheng Zhang

Proceedings of the 27th Annual International Symposium on Wearable Computers (ISWC' 24), 

arXiv Preprint

Supported by NSF 

AI-Powered Eyewear for Routine Facial Expression Analysis in Parkinson’s Disease
Hwai Yin Ooi , Cheng Zhang, Ke Li , Jordan Narins , and Harini Sarva
International Congress of Parkinson’s Disease and Movement Disorders, 2024

EchoGuide: Active Acoustic Guidance for LLM-Based Eating Event Analysis from Egocentric Videos

Vineet Parikh , Saif Mahmud , Devansh Agarwal , Ke Li , François Guimbretière , and Cheng Zhang

Proceedings of the 27th Annual International Symposium on Wearable Computers (ISWC' 24), 

arXiv Preprint

Supported by NSF 

Beyond-Voice: Towards Continous 3D Hand Pose Tracking on Commercial Home Assistant Devices

The ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN 24), 

Award: Best Poster Award for the Accompanying Poster Presentation

Yin Li, Rohan Reddy, Cheng Zhang, Rajalakshmi Nandakumar

Partially Supported by NSF 

EyeEcho: Continuous and Low-power Facial Expression Tracking on Glasses

Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems (CHI 24), 

Conditionally Accepted. 

Ke Li, Ruidong Zhang, Siyuan Chen, Boao Chen, Mose Sakashita, Francois Guimbretiere,  Cheng Zhang

Supported by NSF 

EchoWrist: Continuous Hand Pose Tracking and Hand-Object Interaction Recognition Using Low-Power Active Acoustic Sensing On a Wristband

Proceedings of the 2024 CHI Conference on Human Factors in Computing Systems (CHI 24), 

Conditionally Accepted. 

Chi-Jung Lee, Ruidong Zhang, Devansh Agarwal, Catherine Yu, Vipin Gunda, Oliver Lopez, James Kim, Sicheng Yin, Boao Dong, Ke Li, Mose Sakashita,  Francois Guimbretiere,  Cheng Zhang

Supported by NSF 

HPSpeech: Silent Speech Interface for Commodity Headphones

Proceedings of the 27th Annual International Symposium on Wearable Computers (ISWC' 23), 

Ruidong Zhang, Hao Chen, Devansh Agarwal, Richard Jin, Ke Li, Francois Guimbretiere,  Cheng Zhang

Awards: Highest Review Score among all submissions, Best Paper Honorable Mention Award. 

Supported by NSF 

EchoNose: Sensing Mouth, Breath and Tongue Gestures inside Oral Cavity using a Non-contact Nose Interface

Proceedings of the 27th Annual International Symposium on Wearable Computers (ISWC' 23), 

Ruijia Sun, Xiaohe Zhou, Benjamin Steeper, Ruidong Zhang, Sicheng Yin, Ke Li, Shegnzhang Wu, Sam Tilsen,  Francois Guimbretiere,  Cheng Zhang

Supported by NSF

C-Auth: Exploring the Feasibility of Using Egocentric View of Face Contour for User Authentication on Glasse

Proceedings of the 27th Annual International Symposium on Wearable Computers (ISWC' 23), 

Hyunchul Lim, Guilin Hu, Richard Jin, Hao Chen, Ryan Mao, Ruidong Zhang, Cheng Zhang

Supported by NSF

PoseSonic: 3D Upper Body Pose Estimation Through Egocentric Acoustic Sensing on Smartglasses
Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)/UbiComp ’23, 

Saif Mahmud, Ke Li, Guilin Hu, Hao Chen, Richard Jin, Ruidong Zhang, Francois Guimbretiere, Cheng Zhang

Selected Media Coverage: Cornell Chronicle,  Engadget,  Hackster, Tech Explorist, Tech Xplore. 

Supported by NSF

EchoSpeech: Continuous Silent Speech Recognition on Minimally-obtrusive Eyewear Powered by Acoustic Sensing

Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI'23), 

Ruidong Zhang, Ke Li, Yihong Hao, Yufan Wang, Zhengnan Lai, Francois Guimbretiere,  Cheng Zhang

Selected Media Coverage: Fast Company,  Cornell Chronicle,  Engadget, Popular Science, NeuroScience News, Hackster, AZO Robotics , New Atlas, Tech Xplore, Interesting Engineering. 

ReMotion: Supporting Remote Collaboration in Open Space with Automatic Robotic Embodiment

Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI'23), 

Mose Sakashita, Ruidong Zhang, Xiaoyi Li, Hyunju Kim, Michael Russo, Cheng Zhang, Malte F. Jung, François Guimbretière

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D-Touch: Recognizing and Predicting Fine-grained Hand-face Touching Activities Using a Neck-mounted Wearable

The 26th Annual Conference on Intelligent User Interfaces (IUI ’23)

Hyunchul Lim, Ruidong Zhang, Samhita Pendyal, Jeyeon Jo,  Cheng Zhang

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EatingTrak: Detecting fine-grained eating moments in the wild using a wrist-mounted IMU

The ACM International Conference on Mobile Human-Computer Interaction MobileHCI ’22 

Ruidong Zhang,  Jihai Zhang,  Nitish Gade,  Peng Cao,  Se Yun Kim,  Yizhuo Chen, Junchi Yan,  Cheng Zhang

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BodyTrak: Inferring Full-body Poses from Body Silhouettes Using a Miniature Camera on a Wristband

Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)/UbiComp ’22 

Hyunchul Lim, Yaxuan Li, Matthew Dressa, Fang HU,  Jae Hoon Kim,  Ruidong Zhang,  Cheng Zhang

Selected Media Coverage: Cornell Chronicle , CNET , Hackster,  Interesting Engineering, News Atlas , Tech Xplore.

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EarIO: A Low-power Acoustic Sensing Earable for Continuously Tracking Detailed Facial Movements

Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)/UbiComp ’22

Ke Li, Ruidong Zhang, Bo Liang, Francois Guimbretiere,  Cheng Zhang

Selected Media Coverage: Cornell Chronicle , Engadget , Hackster,  News Atlas , Tech Xplore.

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SpeeChin: A Smart Necklace for Silent Speech Recognition

Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)/UbiComp ’21

Ruidong Zhang,  Mingyang Chen,  Benjamin Steeper,  Yaxuan Li,  Zihan Yan,  Yizhuo Chen,  Songyun Tao,  Tuochao Chen, Hyunchul Lim,  Cheng Zhang

Selected Media Coverage: Cornell Chronicle , Gizmodo , Hackster,  News Atlas , Tech Xplore.

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HandyTrak: Recognizing the Holding Hand on a Commodity Smartphone from Body Silhouette Images

The ACM Symposium on User Interface Software and Technology (UIST) ’21

Hyunchul Lim, David Lin , Jessica Tweneboah,  Cheng Zhang

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ThumbTrak: Recognizing Micro-finger Poses Using a Ring with Proximity Sensing

 ACM International Conference on Mobile Human-Computer Interaction (MobileHCI) ’21

Wei Sun, Franklin Mingzhe Li, Congshu Huang, Zhenyu Lei, Benjamin Steeper, Songyun Tao, Feng Tian, Cheng Zhang

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NeckFace: Continuously Tracking Full Facial Expressions on Neck-mounted Wearables

Published on Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)/UbiComp ’21

Tuochao Chen, Yaxuan Li, Songyun Tao, Hyunchul Lim, Mose Sakashita, Ruidong Zhang, Francois Guimbretiere, Cheng Zhang

Selected Media Coverage: Cornell Chronicle , News Atlas , Hackster

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TeethTap: Recognizing Discrete Teeth Gestures using Motion and Acoustic Sensing on an Earpiece.

The 26th Annual Conference on Intelligent User Interfaces (IUI'21)

Wei Sun, Franklin Mingzhe Li, Benjamin Steeper, Songlin Xu,  Feng Tian, Cheng Zhang

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C-Face: Continuously reconstructing facial expressions by deep learning contours of the face with ear-mounted miniature cameras

 ACM Symposium on User Interface Software and Technology (UIST) UIST ’20

Tuochao Chen, Benjamin Steeper, Kinan Alsheikh, Songyun Tao, Francois Guimbretiere, Cheng Zhang

Selected Media Coverage: Cornell Chronicle , Engadget , New Scientist, NowThis(Twitter, Facebook, Youtube) Yahoo , Mashable,  New Atlas, South China Morning Post.

VibroSense: Recognizing Home Activities by Deep Learning Subtle Vibrations on an Interior Surface of a House from a Single Point Using Laser Doppler Vibrometry

Published on Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)/Ubicomp’20

Wei Sun, Tuochao Chen,  Jiayi Zheng,  Zhenyu Lei, Lucy Wang,  Benjamin Steeper, Peng He, Matthew Dressa, Feng Tian, Cheng Zhang

Selected Media Coverage: Cornell Chronicle, Engadget,  NewAtlas,  Yahoo, TechExplore, PhysicsWorld, The Engineer, Hackster . 

FingerTrak: Continous 3D Hand Pose Tracking by Deep Learning Hand Silhouettes Captured by miniature Thermal Cameras on Wrist

Published on Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)/Ubicomp’20, ECCV'20 Best Demo Honorable Mention (TOP 3 Demos)

Fang Hu, Peng He, Songlin Xu, Yin Li, Cheng Zhang

Selected Media Coverage: BBC, Forbes, Cornell Chronicle, Engadget, Gizmodo, VentureBeat, Yahoo, VisionSystemDesign.

WristWash: Towards Automatic Handwashing Assessment Using a Wrist-worn Device  

Published on 2018 International Symposium on Wearable Computers (ISWC’18)

Hong Li, Shishir Chawla, Richard Li, Sumeet Jain, Gregory D. Abowd, Thad Starner, Cheng Zhang, Thomas Plötz

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FingerPing: Recognizing Fine-Grained Hand Poses Using Active Acoustics Extraction from the Body  

Published on Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems (CHI'18)

Cheng Zhang, Qiuyue Xue, Anandghan Waghmare, Ruichen Meng, Sumeet Jain, Yizeng Han, Xinyu Li, Kenneth Cunefare, Thomas Plötz, Thad Starner, Omer Inan, Gregory D. Abowd

FingerSound: Recognizing unistroke thumb gestures using a ring 

Published on Proc. ACM Interact. Mob. Wearable Ubiquitous Technology(IMWUT). Issue 3 /Ubicomp’17

Cheng Zhang, Anandghan Waghmare, Pranav Kundra, Yiming Pu, Scott Gilliland, Thomas Ploetz, Thad E. Starner, Omer T. Inan, Gregory D. Abowd

FingerOrbits: Interaction with Wearables Using Synchronized Thumb Movements 

Published on 2017 international symposium on wearable computers (ISWC’17).

Cheng Zhang, Xiaoxuan Wang, Anandghan Waghmare, Sumeet Jain, Thomas Ploetz, Omer T.Inan, Thad E. Starner, Gregory D. Abowd

SoundTrak: Continuous 3D Finger Tracking Using Active Acoustics

Published on Proc. ACM Interact. Mob. Wearable UbiquitousTechnol. 1, 2, Article 30 (June 2017) / Ubicomp 2017.

Cheng Zhang, Qiuyue Xue, Anandghan Waghmare, Sumeet Jain, Yiming Pu Sinan Hersek, Kent Lyons, Kenneth A. Cunefare, Omer T.Inan, Gregory D. Abowd

TapSkin: Recognizing On-Skin Input for Smartwatches

Published on 2016 ACM International Conference on Interactive Surfaces and Spaces.

Cheng Zhang, AbdelKareen Bedri, Gabriel Reyes, Bailey Bercik, Omer T. Inan, Thad E. Starner, Gregory D. Abowd

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