+********************************************************************** * * * Einladung * * * * Informatik-Oberseminar * * * +********************************************************************** Zeit: Mittwoch, 30. Oktober 2024, 14:00 Uhr Ort: Im Süsterfeld 9, 52072 Aachen, Raum 273 Referent: Sebastian Hueber M.Sc. Lehrstuhl Informatik 10 Thema: Using Facial Tracking for Expressive Mobile Device Interactions Abstract: For four decades, user interfaces have been mainly designed for pointing input, either with a mouse or a touchscreen. Pointing input abstracts from the human to a location on the screen. Especially visual cues that make human-to-human communication effective – like eye contact or head nodding – are ignored in this abstraction. Mobile devices, in particular, suffer from the limits of pointing input, as users cannot comfortably reach everything on the screen when using the device one-handedly. We present implicit and explicit usages of facial tracking to make mobile interactions more expressive and ergonomic. We show the advantages of eye tracking using three interaction techniques. First, our Attentive Notifications remove occlusion issues and accidental activations in mobile interfaces. They determine a suitable screen edge for displaying notifications by blocking the area around the user’s gaze at the moment of notification delivery. Second, we show that eye tracking can enhance the perception of content in augmented reality with our User-Aware Rendering. This technique provides enhanced depth perception with good performance in scene exploration. Third, interfaces can exploit that gaze input can reach anything nearby. Our GazeConduits concept fosters collaboration in ad-hoc multi-device environments. This enables users to interact with devices or meeting collaborators by looking at them. However, eye tracking often comes with accuracy issues, especially when people are moving, and suffers from the Midas touch problem. To overcome these challenges, two of our interaction techniques use head tracking instead. We present a Head + Touch controlled cursor that increases the thumb’s reach during one-handed smartphone use. This significantly reduces the overhead of touch-based reachability techniques to under 100 ms. With our Headbang technique, menu selections are also faster than with touch input. Es laden ein: die Dozentinnen und Dozenten der Informatik