Research Archive

Duty-cycling and sensor fusion algorithm. Continue

An emerging number of  methods are proposed for eating event detection. To assess the detection performance, evaluation metrics such as precision, recall and F1 score are commonly used. However, these popular metrics only give overview of event retrieval performance and do not tell people the absolu... Continue

To provide high-quality dietary assessment of free-living behaviour is the first step for implementing any effective diet coaching and weight management program.  A continuous direct human observation is an expensive and non-scalable solution. Exploiting an unobtrusive wearable camera-based solution... Continue

Personalized 3D-printed eyeglasses equipped with sensing functions can enhance daily life through augmenting applications that enable wearers to monitor their vitals and behaviour. Novel 3D-printing techniques and materials could provide the basis for personalized smart eyeglasses such that the fram... Continue

Almost one third of our lives is spent sleeping and yet many of us struggle finding consistent high-quality sleep. At the same time, smartphones have become our ubiquitous companions, filled with sensors, processing power, and wireless connectivity. Our proposed sleep timing estimation approach uses smartphone sensor information to estimate daily sleep timing. Continue

ACTLab Activities The particular focus of ACTLab in SimpleSkin is on activity recognition and behaviour inference and patient state interpretation from textile sensor patches in natural free living conditions. For this purpose, new sensor designs are investigated in our lab and proposed for the demo... Continue

WISEglass aims to realise smart eyewear with the perception, performance, and handling of regular eyeglasses. Our approach is based on the observation that most of our senses, vitals, and action involve the head. Smart eyeglasses with regular look thus offer unique and continuous insight into human... Continue

Swallowing appears more accessible than chewing since it involves the neck (pharyngeal) region, rather than the head. Our early investigations were focused on EMG and strain sensing collars. EMG sensors at submental and hyoid positions showed sufficient signal quality for detection of swallows due t... Continue

Chewing is a core component of the intake process and micro-structure. Our early work focused on wearable/implant devices worn at/in the ear canal to capture food breakdown sounds conducted from mandible to skull. We found that the sounds are characteristic for certain foods and food types due to th... Continue

The characteristic movement patterns during intake were first discussed in our 2005 paper on detection of eating and drinking gestures. The approach in most follow-up work has been to measure movements using inertial sensors attached to the wrist. Our work focused on developing spotting methods to i... Continue