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Auflistung nach Schlagwort "Rotation"

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  • Konferenzbeitrag
    MultiKnob — A Knob for Multiplexing Rotation Inputs by Multitouch-based Grasp Recognition
    (Mensch und Computer 2022 - Tagungsband, 2022) Gellert, Edgar; Petersen, David; Böhmer, Matthias
    Rotary knobs are used on many devices. However, while we enrich the functionalities of smart devices, controlling such functionalities by using the rotation as sole input appears to be rather limited. Therefore, we created a physical rotary controller which enriches the input capabilities of a rotary knob, called MultiKnob. It takes the count of applied fingers as an input parameter for multiplexing rotation. The paper discusses three iterations of our prototyping: Beginning with an attempt to extend an existing rotary controller using conductive paint, to the development of several conductive 3D printed prototypes for use on a smartphone display, to a cylinder sensing multi-touch based on infrared light. We discuss possible applications and limitations of a knob which allows to recognize a user’s grasp.
  • Konferenzbeitrag
    Turn Your Head Half Round: VR Rotation Techniques for Situations With Physically Limited Turning Angle
    (Mensch und Computer 2019 - Tagungsband, 2019) Langbehn, Eike; Wittig, Joel; Katzakis, Nikolaos; Steinicke, Frank
    Rotational tracking enables Virtual Reality (VR) users to turn their head around freely 360° while looking around the environment. However, there are situations when physical head rotation is only possible for not more than a certain range, e. g., when the user sits in a bus or plane while she is wearing a VR headset. For these situations, rotation gains were introduced to decouple virtual and real rotations. We present two more techniques that allow 360° virtual turning in a physically limited space: Dynamic Rotation Gains and Scrolling. We conducted an experiment to compare those three rotation techniques and a baseline condition regarding VR sickness, spatial orientation, and usability. We found a significant underestimation of rotation angles for the dynamic rotation gains which might mean that this technique is more subtle than others. Furthermore, usability was higher and VR sickness lower for the dynamic rotation gains while scrolling caused the highest VR sickness. Finally, we conducted a confirmatory study to prove the applicability of dynamic rotation gains in an actual VR experience and got promising feedback.