FIGURE 4 - uploaded by David R Labbe
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| Percentage of choice for each condition in the ten pairs of one-to-one comparisons in the two-alternative forced choice phase (30 participants for each ten comparisons). VIS, Visual-only condition (no vibration); CON, congruent condition; DEL, delayed condition; OOP, out-of-phase condition; LAT, lateralized condition.
Source publication
When immersed in virtual reality, users who view their body as a co-located virtual avatar that reflects their movements, generally develop a sense of embodiment whereby they perceive the virtual body to be their own. One aspect of the sense of embodiment is the feeling of agency over the avatar, i.e., the feeling that one is producing the movement...
Context in source publication
Context 1
... out of phase (OOP) condition was preferred in 49% of comparisons, while the visual-only (VIS) condition, with no proprioceptive stimulation was preferred only 20% of the time. Figure 4 shows the percentage of preference of each condition across all trials and all participants, regardless of which condition it was being compared to. ...
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The computer vision community has extensively researched the area of human motion analysis, which primarily focuses on pose estimation, activity recognition, pose or gesture recognition and so on. However for many applications, like monitoring of functional rehabilitation of patients with musculo skeletal or physical impairments, the requirement is...
Citations
Walking is a human need. Even when physical disabilities or social situations, such as the COVID-19 pandemic, prevent people from walking, virtual reality can provide an opportunity for virtual walking or travel. In this study, a virtual walking system was developed in which users view omnidirectional movies while receiving scene-congruent vibrations to their left and right forefeet and heels. The timings of foot vibrations were generated by estimating the camera motion trajectory with visual simultaneous localization and mapping (visual SLAM) applied to four omnidirectional movies. Congruent vibration patterns were prepared for four ground scenes. Modulation of walking-related sensations and ground material perceptions by congruent and incongruent vibrations was verified using psychological measurements. The results showed that rhythmic foot vibration improved the sensations of self-motion, walking, leg action, and telepresence irrespective of scene–vibration congruency. Moreover, congruent vibrations were better than incongruent vibrations for walking-related sensations and telepresence in indoor corridors and snowy ground scenes. The perception of ground materials was enhanced by scene-congruent vibrations, whereas it was confused by scene-incongruent vibrations. These findings suggest that vibration patterns do not necessarily need to match the ground exactly to induce virtual walking sensations; however, scene-congruent or similar vibrations improve virtual walking sensations and ground material perception. By applying our methods, we can convert various public omnidirectional movies into realistic virtual walking experiences.
