NDLI: Interference avoidance in multi-user hand-held augmented reality

Content Provider	IEEE Xplore Digital Library
Author	Oda, O. Feiner, S.
Copyright Year	2009
Description	Author affiliation: Columbia University, USA (Oda, O.; Feiner, S.)
Abstract	In a multi-user augmented reality application for a shared physical environment, it is possible for users to interfere with each other. For example, in a multi-player game in which each player holds a display whose tracked position and orientation affect the outcome, one player may physically block another player's view or physically contact another player. We explore software techniques intended to avoid such interference. These techniques modify what a user sees or hears, and what interaction capabilities they have, when their display gets too close to another user's display. We present Redirected Motion, an effective, yet nondistracting, interference avoidance technique for hand-held AR, which transforms the 3D space in which the user moves their display, to direct the display away from other displays. We conducted a within-subject, formal user study to evaluate the effectiveness and distraction level of Redirected Motion compared to other interference avoidance techniques. The study is based on an instrumented, two-player, first-person-shooter, augmented reality game, in which each player holds a 6DOF-tracked ultra-mobile computer. Comparison conditions include an unmanipulated control condition and three other software techniques for avoiding interference: dimming the display, playing disturbing sounds, and disabling interaction capabilities. Subjective evaluation indicates that Redirected Motion was unnoticeable, and quantitative analysis shows that the mean distance between users during Redirected Motion was significantly larger than for the comparison conditions.
Starting Page	13
Ending Page	22
File Size	7969740
Page Count	10
File Format	PDF
ISBN	9781424453900
DOI	10.1109/ISMAR.2009.5336507
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Augmented reality Collaborative work Three dimensional displays Computer displays Solid modeling Motion analysis Computer interfaces Visualization Instruments computer-supported cooperative play/work (CSCP/CSCW) Collaborative/competitive augmented reality computer games interference avoidance
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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