collaborators

9 papers

cs.HC2026

HeartbeatCam: Self-Triggered Photo Elicitation of Stress Events Using Wearable Sensing

Boyang Zhou, Zara Dana

People often recognize what triggered their stress only after the moment has passed. In therapy, this can become a recurring problem: clients are asked to remember what happened be…

cs.HC2025

Beyond the Pocket: A Large-Scale International Study on User Preferences on Bodily Placements of Commercial Wearables

Joanna Sorysz, Lars Krupp, Dominique Nshimyimana +4

As wearables become smaller, more powerful, and increasingly embedded in everyday life, their integration into diverse user contexts raises important design challenges. Despite thi…

cs.HC2025

ChairPose: Pressure-based Chair Morphology Grounded Sitting Pose Estimation through Simulation-Assisted Training

Lala Shakti Swarup Ray, Vitor Fortes Rey, Bo Zhou +2

Prolonged seated activity is increasingly common in modern environments, raising concerns around musculoskeletal health, ergonomics, and the design of responsive interactive system…

cs.CV2025

SImpHAR: Advancing impedance-based human activity recognition using 3D simulation and text-to-motion models

Lala Shakti Swarup Ray, Mengxi Liu, Deepika Gurung +3

Human Activity Recognition (HAR) with wearable sensors is essential for applications in healthcare, fitness, and human-computer interaction. Bio-impedance sensing offers unique adv…

cs.HC2025

W2W: A Simulated Exploration of IMU Placement Across the Human Body for Designing Smarter Wearable

Lala Shakti Swarup Ray, Bo Zhou, Paul Lukowicz

Inertial measurement units (IMUs) are central to wearable systems for activity recognition and pose estimation, but sensor placement remains largely guided by heuristics and conven…

cs.HC2025

iBreath: Usage Of Breathing Gestures as Means of Interactions

Mengxi Liu, Daniel Geißler, Deepika Gurung +5

Breathing is a spontaneous but controllable body function that can be used for hands-free interaction. Our work introduces "iBreath", a novel system to detect breathing gestures si…

cs.CV2025

From Neck to Head: Bio-Impedance Sensing for Head Pose Estimation

Mengxi Liu, Lala Shakti Swarup Ray, Sizhen Bian +6

We present NeckSense, a novel wearable system for head pose tracking that leverages multi-channel bio-impedance sensing with soft, dry electrodes embedded in a lightweight, necklac…

cs.LG2025

Human in the Latent Loop (HILL): Interactively Guiding Model Training Through Human Intuition

Daniel Geissler, Lars Krupp, Vishal Banwari +4

Latent space representations are critical for understanding and improving the behavior of machine learning models, yet they often remain obscure and intricate. Understanding and ex…

cs.AI2025

TxP: Reciprocal Generation of Ground Pressure Dynamics and Activity Descriptions for Improving Human Activity Recognition

Lala Shakti Swarup Ray, Lars Krupp, Vitor Fortes Rey +3

Sensor-based human activity recognition (HAR) has predominantly focused on Inertial Measurement Units and vision data, often overlooking the capabilities unique to pressure sensors…