Auflistung nach Schlagwort "gestures"
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- KonferenzbeitragAuditory Display for Improving Free-hand Gesture Interaction(Mensch und Computer 2017 - Tagungsband, 2017) Black, David; Ganze, Bastian; Hettig, Julian; Hansen, ChristianFree-hand gesture recognition technologies allow touchless interaction with a range of applications. However, touchless interaction concepts usually only provide primary, visual feedback on a screen. The lack of secondary tactile feedback, such as that of pressing a key or clicking a mouse, in interaction with free-hand gestures is one reason that such techniques have not been adopted as a standard means of input. This work explores the use of auditory display to improve free-hand gestures. Gestures using a Leap motion controller were augmented with auditory icons and continuous, model-based sonification. Three concepts were generated and evaluated using a sphere-selection task and a video frame selection task. The user experience of the participants was evaluated using NASA TLX and QUESI questionnaires. Results show that the combination of auditory and visual display outperform both purely auditory and purely visual displays in terms of subjective workload and performance measures.
- WorkshopbeitragPlantar pressure-based gestures for medical image manipulation(Mensch und Computer 2018 - Tagungsband, 2018) Solovjova, Alina; Labsch, Dominic; Hatscher, Benjamin; Fritzsche, Markus; Hansen, ChristianIn this work, we present an interaction concept for manipulating an image viewer only using a pressure sensitive shoe insole. A simple foot gesture set has been created and applied to a prototypical user interface, which enables the changing of slices of medical image data in an image viewer. In a pilot study, the gestures were tested according to the NASA Task Load Index (NASA-TLX). The purpose of this project was to estimate how suitable and user-friendly different foot gestures are in practice. We found that plantar pressure-based gestures are quite intuitive and users quickly become accustomed to using them. However, gestures based on overlapping pressure-sensitive areas might lead to unintended results.
- KonferenzbeitragUsability of Gesture-based Mobile Applications for First-time Use(Mensch und Computer 2015 – Proceedings, 2015) Heuwing, Ben; Köller, Ina; Schanz, Viktor; Mandl, ThomasGestural touch interaction is increasingly being employed when designing interaction for mobile devices. This study compares the usability of manipulative touch gestures to that of an established interaction style based on buttons and menus in a realistic setting during first-time use of two mobile productivity applications. Usability is measured as task success, time on task, error rates, and user satisfaction ratings. While results over all tasks indicate a negative influence of gestures during first-time use, they also show that users are able learn new gestures in a shorter time span than expected. However, this does not ensure users’ overall satisfaction with a gestural interface.