Browsing by Keyword "Virtual Reality"
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Item AR-Enhanced Human-Robot-Interaction - Methodologies, Algorithms, Tools(2016) Andersson, Nils; Argyrou, Angelos; Nagele, Frank; Ubis, Fernando; Esnaola-Campos, Urko; Ortiz-de-Zarate, Maite; Wilterdink, Robert; Nägele, Frank; Tecnalia Research & Innovation; ROBOTICA_FLEXBy using Augmented Reality in Human-Robot-Interaction scenariospropose it is possible to improve training, programming, maintenance and process monitoring. AR Enhanced Human Robot Interaction means it is possible to conduct activities not only in a training facility with physical robot(s) but also in a complete virtual environment. By using virtual environments only a computer and possibly Head Mounting Display is required. This will reduce the bottlenecks for with overbooked physical training facilities. Physical environment for the activities with robot(s) will still be required, however using also virtual environments will increase flexibility and human operator can focus on training more complicated tasks. (C) 2016 The Authors. Published by Elsevier B.V.Item The impact of size and position of reference electrode on the localization of biphasic electrotactile stimulation on the fingertips(2022) Isakovic, Milica; Malesevic, Jovana; Kostic, Milos; Dosen, Strahinja; Strbac, Matija; Tecnalia Research & Innovation; SGDevelopment of haptic interfaces to enrich augmented and virtual reality with the sense of touch is the next frontier for technological advancement of these systems. Among available technologies, electrotactile stimulation enables design of high-density interfaces that can provide natural-like sensation of touch in interaction with virtual objects. The present study investigates the human perception of electrotactile sensations on fingertips, focusing on the sensation localization in function of the size and position of reference electrode. Ten healthy subjects participated in the study, with the task to mark the sensations elicited by stimulating the index fingertip using an 8-pad electrode. The test systematically explored several configurations of the active (position) and reference (position and size) electrode pads. The results indicated that there was a spreading of perceived sensations across the fingertip, but that they were mostly localized below the active pad. The position and size of the reference electrode were shown to affect the location of the perceived sensations, which can potentially be exploited as an additional parameter to modulate the feedback. The present study demonstrates that the fingertip is a promising target for the delivery of high-resolution feedback.