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An evaluation of two simple methods for representing heaviness in immersive virtual environments

Hummel, Johannes and Dodiya, Janki and Wolff, Robin and Gerndt, Andreas and Kuhlen, Torsten (2013) An evaluation of two simple methods for representing heaviness in immersive virtual environments. In: IEEE Symposium on 3D User Interfaces, pp. 87-94. IEEE. IEEE Symposium on 3D User Interfaces (3DUI), 2013, 16-17 March 2013, Orlando, Florida, USA. ISBN 978-1-4673-6097-5

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Official URL: http://dx.doi.org/10.1109/3DUI.2013.6550202

Abstract

Weight perception in virtual environments generally can be achieved with haptic devices. However, most of these are hard to integrate in an immersive virtual environment (IVE) due to their technical complexity and the restriction of a user's movement within the IVE. We describe two simple methods using only a wireless light-weight finger-tracking device in combination with a physics simulated hand model to create a feeling of heaviness of virtual objects when interacting with them in an IVE. The first method maps the varying distance between tracked fingers and the thumb to the grasping force required for lifting a virtual object with a given weight. The second method maps the detected intensity of finger pinch during grasping gestures to the lifting force. In an experiment described in this paper we investigated the potential of the proposed methods for the discrimination of heaviness of virtual objects by finding the just noticeable difference (JND) to calculate the Weber fraction. Furthermore, the workload that users experienced using these methods was measured to gain more insight into their usefulness as interaction technique. At a hit ratio of 0.75, the determined Weber fraction using the finger distance based method was 16.25% and using the pinch based method was 15.48%, which corresponds to values found in related work. There was no significant effect of method on the difference threshold measured and the workload experienced, however the user preference was higher for the pinch based method. The results demonstrate the capability of the proposed methods for the perception of heaviness in IVEs and therefore represent a simple alternative to haptics based methods.

Item URL in elib:https://elib.dlr.de/87539/
Document Type:Conference or Workshop Item (Speech)
Title:An evaluation of two simple methods for representing heaviness in immersive virtual environments
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hummel, JohannesGerman Aerospace Center (DLR), GermanyUNSPECIFIED
Dodiya, JankiGerman Aerospace Center (DLR), GermanyUNSPECIFIED
Wolff, RobinGerman Aerospace Center (DLR), GermanyUNSPECIFIED
Gerndt, AndreasGerman Aerospace Center (DLR), GermanyUNSPECIFIED
Kuhlen, TorstenVirtual Reality Group, RWTH Aachen University, GermanyUNSPECIFIED
Date:16 March 2013
Journal or Publication Title:IEEE Symposium on 3D User Interfaces
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Page Range:pp. 87-94
Editors:
EditorsEmail
Lécuyer, AnatoleINRIA, France
Steinicke, FrankUniversity of Wuerzburg, Germany
Billinghurst, MarkUniversity of Canterbury, New Zealand
Publisher:IEEE
ISBN:978-1-4673-6097-5
Status:Published
Keywords:gesture recognition haptic interfaces virtual reality immersive virtual environment (IVE) just noticeable difference (JND) Weber fraction grasping haptics based methods heaviness discrimination heaviness representation physics simulated hand model weight perception wireless light-weight finger-tracking device
Event Title:IEEE Symposium on 3D User Interfaces (3DUI), 2013
Event Location:Orlando, Florida, USA
Event Type:international Conference
Event Dates:16-17 March 2013
Organizer:IEEE: Lecuyer, Anatole; Steinicke, Frank; Billinghurst, Mark
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben On-Orbit Servicing - GNC und VR
Location: Braunschweig
Institutes and Institutions:Institut of Simulation and Software Technology
Institut of Simulation and Software Technology > Software for Space Systems and Interactive Visualisation
Deposited By: Hummel, Johannes Wolfgang
Deposited On:14 Jan 2014 13:04
Last Modified:09 Feb 2017 19:20

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