6 papers
LubDubDecoder: Bringing Micro-Mechanical Cardiac Monitoring to Hearables
Siqi Zhang, Xiyuxing Zhang, Duc Vu +6
We present LubDubDecoder, a system that enables fine-grained monitoring of micro-cardiac vibrations associated with the opening and closing of heart valves across a range of hearab…
Active noise cancellation on open-ear smart glasses
Kuang Yuan, Freddy Yifei Liu, Tong Xiao +5
Smart glasses are becoming an increasingly prevalent wearable platform, with audio as a key interaction modality. However, hearing in noisy environments remains challenging because…
SonicSieve: Bringing Directional Speech Extraction to Smartphones Using Acoustic Microstructures
Kuang Yuan, Yifeng Wang, Xiyuxing Zhang +3
Imagine placing your smartphone on a table in a noisy restaurant and clearly capturing the voices of friends seated around you, or recording a lecturer's voice with clarity in a re…
VergeIO: Depth-Aware Eye Interaction on Glasses
Xiyuxing Zhang, Duc Vu, Chengyi Shen +3
There is growing industry interest in unobtrusive designs for electrooculography (EOG) sensing of eye gestures on glasses (e.g. JINS MEME and Apple eyewear). We present VergeIO, an…
Contactless Monitoring of Muscle Vibrations During Exercise with a Chaos-Inspired Radar
Jiangyifei Zhu, Yuzhe Wang, Tao Qiang +6
In this paper, our goal is to enable quantitative feedback on muscle fatigue during exercise to optimize exercise effectiveness while minimizing injury risk. We seek to capture fat…
Measuring multi-site pulse transit time with an AI-enabled mmWave radar
Jiangyifei Zhu, Kuang Yuan, Akarsh Prabhakara +5
Pulse Transit Time (PTT) is a measure of arterial stiffness and a physiological marker associated with cardiovascular function, with an inverse relationship to diastolic blood pres…