NDLI: Influence of the bimanual frame of reference with haptics for unimanual interaction tasks in virtual environments

Content Provider	IEEE Xplore Digital Library
Author	Ullrich, S. Knott, T. Law, Y.C. Grottke, O. Kuhlen, T.
Copyright Year	2011
Description	Author affiliation: Department of Anaesthesiology, RWTH Aachen University Hospital, Germany (Grottke, O.) \|\| Virtual Reality Group, RWTH Aachen University, Germany (Ullrich, S.; Knott, T.; Law, Y.C.; Kuhlen, T.)
Abstract	In this paper, we present the results of a user study with a bimanual haptic setup. The goal of the experiment was to evaluate if Guiard's theory of the bimanual frame of reference can be applied to interaction tasks in virtual environments (VE) with haptic rendering. This theory proposes an influence of the non-dominant hand (NDH) on the dominant hand (DH). The experiment was conducted with multiple trials under two different conditions: bimanual and unimanual. The interaction task in this scenario was a sequence of pointing, alignment and docking sub-tasks for the dominant hand. In the bimanual condition, an asynchronous pointing task was added for the non-dominant hand. This additional task was primarily designed to bring the non-dominant hand closer to the other hand and thus enable the creation of a frame of reference. Our results show the potential of this task design extension (with NDH utilization). Task completion times are significantly lower in the bimanual condition compared to the unimanual case, without significant impact on overall precision. Furthermore, the bimanual condition shows better mean accuracy over several measures, e.g., lateral displacement and penetration depth. Additionally, subject performance was not only compared for all participants, but also between subgroups: medical vs. non-medical and gamer vs. non-gamer. User preference for a bimanual system over a unimanual system has been indicated with a post-test questionnaire.
Starting Page	39
Ending Page	46
File Size	2508073
Page Count	8
File Format	PDF
ISBN	9781457700637
e-ISBN	9781457700644
DOI	10.1109/3DUI.2011.5759215
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-19
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Presses Accuracy DH-HEMTs Needles Three dimensional displays Haptic interfaces
Content Type	Text
Resource Type	Article

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