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Ambient intelligence and physical AI for mobile, wearable, IoT and Robotics systems

Ke Sun

Assistant Professor, Computer Science and Engineering, EECS Department, University of Michigan, Ann Arbor

kesuniot@umich.edu | Samsonsjarkal

Google Scholar | Resume | Ambient Intelligence (AmI) Lab

Personal photo

Research Highlights

We study ambient intelligence and physical AI systems for mobile, wearable, IoT, and robotic platforms, with emphasis on repurposed multi-modal sensing, AI-native system challenges, and human-centered applications.

If you are interested in AmI lab ongoing research projects, please check the AmI Lab page.

MoiréLens preview

MoiréLens: Bringing Schlieren Imaging into Real-World Environments Using Moiré Patterns

Linzhen Zhu*, Runqiu Wang*, Yi Rong, Ke Sun

ACM SenSys 2026, May 2026.

MoiréLens turns everyday cameras into tools for visualizing subtle airflow and refractive-index dynamics in real-world settings.

PDF Website Code

EarCardio preview

Unlocking Practical Cardiac Monitoring Capabilities on True Wireless Stereo Earbuds

Yongjian Fu, Ke Sun, Xinyu Zhang, Ruyao Wang, Xinyi Li, Hao Pan, Yaoxue Zhang, Ju Ren

ACM MobiCom 2026, Oct 2026.

EarCardio repurposes commercial wireless earbuds for practical cardiac monitoring by capturing in-ear ballistocardiogram signals.

MagicPatch preview

Attacking mmWave Imaging Using Metasurfaces Based on Intensity and Time-of-Flight Manipulation

Shuning Wang, Yongjian Fu, Hao Pan, Xinyi Li, Linghui Zhong, Yaxiong Xie, Ke Sun, Guangtao Xue, Yaoxue Zhang, Ju Ren

ACM MobiCom 2026, Oct 2026.

MagicPatch demonstrates a practical metasurface-based attack on millimeter-wave imaging by manipulating both intensity and time-of-flight.

UltraPoser preview

UltraPoser: Pushing the Limits of IMU-based Full-Body Pose Estimation with Ultrasound Sensing on Consumer Wearables

Yadong Li*, Shuning Wang*, Yongjian Fu, Justin Chen, Xingyu Chen, Ju Ren, Xinyu Zhang, Akshay Gadre, Ke Sun

ACM UIST 2025, Oct 2025.

UltraPoser combines ultrasound sensing with consumer wearables to substantially improve IMU-based full-body pose estimation.

PDF Video GitHub

A note about authors list: Underlined are students that I supervise. '*' marks co-primary authors.

News

Aug 2026
StateScribe (accessible change awareness across real-world revisits) has been accepted by ACM UIST 2026.
Aug 2026
MoiréSkin (visuo-tactile skin using Moiré patterns) has been accepted by ACM MobiCom 2026.
Mar 2026
Excited to share that MoiréLens (sensing and visualizing invisible air flow change) has been accepted by SenSys 2026. Congratulations to my Ph.D. student Linzhen Zhu and my undergraduate student Runqiu Wang!
Dec 2025
KDC (Sensor data delivery through knowledge-driven communication using Vision-Language Model (VLM)) has been accepted by NSDI 2026.
Dec 2025
EarCardio (cardiac monitoring using commercial TWS earbuds) and MagicPatch (attack on mmWave security screening systems) have been accepted by MobiCom 2026.
Nov 2025
UWB-Prac (UWB-based in-cabin phone localization) has been accepted by ACM SenSys 2026.
Mar 2025
EveGuard (Adversarial Defense on Side-channel Speech Eavesdropping) has been accepted by IEEE S&P 2025.

Selected Honor and Awards

2023 Google Ph.D. Fellowship in Mobile Computing

2023 UbiComp Distinguished Paper Award 8 out of 210 accepted papers.

2021 ACM MobiCom Student Travel Grants

2020 ACM SenSys Best Poster Award Runner-ups 3 out of 84 accepted posters.

2018 ACM MobiSys Student Travel Grants

2015 ACM-ICPC Asia Regional Contest(Chang Chun Site), Gold Medal

2015 CCF(China Computer Federation) Outstanding Undergraduate Award

Service

Program Committee Member:

2026 ACM UIST, ACM SenSys

2025 ACM MobiSys, ACM SenSys

2022 ACM SenSys Shadow PC

Associate Editor:

2026 ACM IMWUT (UbiComp) Associate Editor

2025 ACM IMWUT (UbiComp) Associate Editor

Reviewer:

2025 ACM MobiSys, ACM SenSys, ACM IMWUT (UbiComp)

2024 IEEE ICASSP, ACM IMWUT (UbiComp)

2023 IEEE ICASSP, ACM TMC, ACM TOSN

2022 IEEE ICASSP, ACM IMWUT (UbiComp), IEEE TMC, ACM SenSys Shadow PC

2021 ACM TOSN, IEEE TMC, ACM MobileHCI

2020 IEEE TMC, ACM IMWUT (UbiComp)

Organizer and Chair:

2023 ICLR Machine Learning for IoT Workshop Co-organizer and Session Chair

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