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Auflistung nach Schlagwort "Visual Feedback"

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  • Zeitschriftenartikel
    GazeWheels: Recommendations for using wheel widgets for feedback during dwell-time gaze input
    (it - Information Technology: Vol. 63, No. 3, 2021) Fernandez, Misahael; Mathis, Florian; Khamis, Mohamed
    We present GazeWheels: a series of visual feedback methods for dwell-based gaze input in the form of a wheel that is filled gradually until target selection. We evaluate three variations: Resetting, Pause & Resume and Infinite GazeWheel, and study how dwell duration and visual feedback position (co-located vs remote) impact performance. Findings from a user study (N = 19) show that Infinite and Pause & Resume GazeWheels are error prone but significantly faster than Resetting GazeWheel even when including error correction time. We conclude with five design recommendations.
  • Konferenzbeitrag
    The Impact of Visual Feedback and Avatar Presence on Balance in Virtual Reality
    (Proceedings of Mensch und Computer 2024, 2024) Resch, Stefan; Tiwari, Rohan Brijesh; Vankawala, Heer Rakeshkumar; Singh, Priya; Rafati, Mustafa; Schwind, Valentin; Völz, Diana; Sanchez-Morillo, Daniel
    Balance board training is a promising method to enhance physical rehabilitation for humans with motor problems through interactive exercises. Previous work highlighted the benefits of balance board training in virtual reality (VR) compared to conventional methods. However, it is still unclear how visual target feedback and the presence of an avatar influence balance behavior in immersive environments. We conducted an experimental user study with 24 participants without motor impairments to investigate the effects of visual target feedback and a human avatar on balance performance and perceived workload in VR. Quantitative results show that visual target feedback significantly improves balance performance without increasing workload in VR. In contrast, an avatar shows no effect on performance and workload, which is also confirmed by qualitative feedback. Finally, we discuss the implications of our study for future developments of virtual balance board training exercises and highlight potential applications of visual target feedback.
  • Konferenzbeitrag
    Usability and UX of a Gaze Interaction Tool for Front Seat Passengers
    (Mensch und Computer 2019 - Tagungsband, 2019) Schmidbauer-Wolf, Gina Maria; Guder, Markus
    Input modalities in general as well as in cars are evolving very fast (regarding) in terms of their spread and reliability. One possible input technique would be gaze interaction, a topic still being researched/ that is yet to be researched. There are currently no data available as regards the opinion of front seat passengers as potential users. What are the front seat passengers’ feelings towards gaze interaction, are they comfortable using it and do they think it is necessary? In order to provide a first insight into this subject matter, a laboratory experiment was conducted with 13 student participants, using a driving simulator. Qualitative data was collected during and after the experiment through a semi-structured interview while quantitative data was collected through questionnaires (ATI, CTAM, SUS). Since the system was mocked up and not implemented and the group of participants wasn’t heterogenous enough, the results of the study, which are slightly positive, only are a hint towards the actual answer.