143 citations · 625 across the 17 of their papers we have counts for
4 papers · 1 filter
Instant Automated Inference of Perceived Mental Stress through Smartphone PPG and Thermal Imaging
Youngjun Cho, Simon J. Julier, Nadia Bianchi-Berthouze
Background: A smartphone is a promising tool for daily cardiovascular measurement and mental stress monitoring. A smartphone camera-based PhotoPlethysmoGraphy (PPG) and a low-cost…
Sensorless Resonance Tracking of Resonant Electromagnetic Actuator through Back-EMF Estimation for Mobile Devices
Youngjun Cho
Resonant electromagnetic actuators have been broadly used as vibration motors for mobile devices given their ability of generating relatively fast, strong, and controllable vibrati…
Deep Thermal Imaging: Proximate Material Type Recognition in the Wild through Deep Learning of Spatial Surface Temperature Patterns
Youngjun Cho, Nadia Bianchi-Berthouze, Nicolai Marquardt +1
We introduce Deep Thermal Imaging, a new approach for close-range automatic recognition of materials to enhance the understanding of people and ubiquitous technologies of their pro…
RealPen: Providing Realism in Handwriting Tasks on Touch Surfaces using Auditory-Tactile Feedback
Youngjun Cho, Andrea Bianchi, Nicolai Marquardt +1
We present RealPen, an augmented stylus for capacitive tablet screens that recreates the physical sensation of writing on paper with a pencil, ball-point pen or marker pen. The aim…