PLEASE NOTE: THIS TALK WILL BE IN THE MARTIN COLLOQUIUM ROOM - 4TH FLOOR SENNOTT SQUARE
Heart rate monitoring has been widely used in clinical care, fitness training and stress management. However, the longitudinal tracking of heart rate signals faces major challenges because of equipment availability and user motivation. In this talk, I will present a novel technique, LivePulse Games (LPG), to measure users’ heart rate in real time by having them play casual games on unmodified mobile phones. With LPG, heart rate is calculated by detecting change in transparency of users’ fingertips via a mobile device’s built-in camera. LPG also integrate users’ camera lens covering actions as a control mechanism for game play to detect heart rate implicitly. In this project, we explore the design space and trade-offs of LPG through three rounds of interactive design. In a 12-subject user study, we found that LivePulse games are fun to play and can measure heart rates accurately. We also report the insights for balancing measurement speed, accuracy and entertainment value.