Human
Factors in Tele-Immersion
Tele-Immersion is the merging of audio and video conferencing
with collaborative virtual reality, data-mining
and significant computation systems. As Tele-Immersion often involves
distantly located
participants all interacting with each other in real-time, it relies
heavily on the quality of the underlying
networks used to distribute information between participants.
This paper presents our preliminary findings
of testing a number of tele-immersive applications over the STAR TAP
link between Chicago and
Singapore. The goal is to be able to prescribe and deploy a suite of
Tele-Immersion networking
experiments arou d the world for testing and comparing the quality of
their links so that predictions can be
made of the suitability of the link for supporting different classes
of Tele-Immersion applications.
pdf document 125 kb
J. Leigh, Park, K., Kenyon, R., Johnson, A., DeFanti T., Wong, H., Preliminary STAR TAP Tele-Immersion Experiments between Chicago and Singapore, Proceedings of HPCAsia '98, Singapore, 09/22/98-09/22/98, pp. 687-693.
Effects of Network Characteristics on Human Performance in a Collaborative Virtual Environment
We assessed the effects of network latency and jitter on a cooperative
teleoperation task in a collaborative virtual environment. Two remote
partners worked together to manipulate shared virtual objects over a network.
The was to minimize the time to transfer a ring through one of four paths
with the least number of collisions. The performance of human subjects
was measured and analyzed quantitatively as a function of network latency:
10 and 200 msec delays with and without jitter. Jitter had the greatest
impact on coordination performance when the latency was high and the task
was difficult. These results are discussed in light of current and future
CVE tasks.
pdf document 282
kb
K. Park, Kenyon, R., Effects of Network Characteristics on Human Performance in a Collaborative Virtual Environment, Proceedings of IEEE VR `99, Houston, TX, 03/13/99-03/17/99.
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Exploiting Multiple Perspectives in Tele-Immersion
The work in this paper describes a preliminary observational study conducted on users of CAVE6D, a collaborative CAVE-based virtual reality tool for visualizing multivariate oceanographic data sets. CAVE6D presents the concept of multiple perspectives by allowing participants to customize their views while working collaboratively and supporting the views either privately or globally. The goal of this study is to understand how tele-immersed participants cooperate when presented with multiple perspectives and to explore ways to leverage these perspectives to allow scientists to more rapidly interpret massive multi-dimensional data sets. pdf document193 kb K. Park, Kapoor A., Scharver, C., Leigh, J., Exploiting Multiple Perspectives in Tele-Immersion, Proceedings of IPT 2000: Immersive Projection Technology Workshop, Ames, IA, 06/19/00-06/20/00. |
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Lessons Learned from Employing Multiple Perspectives In a
Collaborative Virtual Environment for Visualizing Scientific Data
This paper explores the concept of multiple perspectives to enhance collaboration by allowing remote participants to tailor their views, user-interfaces and roles to their particular needs and expertise. It describes a preliminary design study conducted on users of a collaborative CAVE-based virtual reality tool for visualizing oceanographic data. Results will focus on the patterns of activity within this environment, in particular the manner in which participants transition between individual and group work during the course of a collaborative session. pdf document 252 kb K. Park, Kapoor, A., Leigh, J., Lessons Learned from Employing Multiple Perspectives In a Collaborative Virtual Environment for Visualizing Scientific Data, Proceedings of ACM CVE 2000, San Francisco, CA, 09/10/00-09/12/00, pp. 73-82 |
