Lars Winkler Pettersson
Department of Information Technology, Uppsala University, Sweden
Ulrik Spak
Swedish National Defence College, Sweden
Stefan Seipel
Department of Information Technology, Uppsala University \ Department of Mathematics and Computer Science University of Gävle
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Ingår i: The Annual SIGRAD Conference. Special Theme - Environmental Visualization
Linköping Electronic Conference Proceedings 13:9, s. 41-47
Publicerad: 2004-11-24
ISBN:
ISSN: 1650-3686 (tryckt), 1650-3740 (online)
We present a prototype command and control system that is based on view-dependent co-located visualizations of geographically related data. It runs on a 3D display environment; in which several users can interact with view consistent visualizations of information. The display system projects four independent stereoscopic image pairs at full resolution upon a custom designed optical screen. It uses head tracking for up to four individual observers to generate distortion free imagery that is rendered on a PC based rendering cluster. We describe the technical platform and system configuration and introduce our unified software architecture that allows integrating multiple rendering processes with head tracking for multiple viewers. We then present results of our current visualization application in the field of military command and control. The command and control system renders view consistent geographical information in a stereoscopic 3D view whereby command and control symbols are presented in a viewpoint adapted way. We summarize our experiences with this new environment and discuss technical soundness and performance.
CR Categories: I.3.2 [Computer Graphics]: Graphics Systems— Distributed/network graphics.
Distributed Rendering; Networked Virtual Environment; Display Environments; Stereoscopic Projection; GIS
AGRAWALA; M.; BEERS; A. C.; MCDOWALL; I.; FR ¨OHLICH; B.; BOLAS; M.; AND HANRAHAN; P. 1997. The two-user responsive workbench: support for collaboration through individual views of a shared space. In Proceedings of the 24th annual conference on Computer graphics and interactive techniquesarrraraa; ACM Press/Addison-Wesley Publishing Co.; 327–332.
ALLARD; J.; GOURANTON; V.; LECOINTRE; L.; MELIN; E.; AND RAFFIN; B. 2002. Net juggler: Running vr juggler with multiple displays on a commodity component cluster. In Proceedings of the IEEE Virtual Reality Conference 2002; IEEE Computer Society; 273.
AZUMA; R. 1997. A survey of augmented reality. Presence; Teleoperators and Virtual Environments 6; 4; 355–385.
CARLSSON; C.; AND HAGSAND; O. 1993. Dive - a platform for multi-user virtual environments. Computers and Graphics 17; 6; 663–669.
HALLE; M. 1997. Autostereoscopic displays and computer graphics. Computer Graphics 31; 2; 58–62.
HEDLEY; N. R.; BILLINGHURST; M.; POSTNER; L.; MAY; R.; AND KATO; H. 2002. Explorations in the use of augmented reality for geographic visualization. Presence: Teleoper. Virtual Environ. 11; 2; 119–133.
HIRSCH; M.; 1961. Three dimensional display apparatus. U. S. Patent No. 2;967;905.
HUMPHREYS; G.; HOUSTON; M.; NG; R.; FRANK; R.; AHERN; S.; KIRCHNER; P. D.; AND KLOSOWSKI; J. T. 2002.
Chromium: a stream-processing framework for interactive rendering on clusters. In Proceedings of the 29th annual conference on Computer graphics and interactive techniques; ACM Press; 693–702.
KETCHPEL; R. D.; 1964. Three-dimensional cathode ray tube. U. S. Patent No. 3;140;415; July.
KITAMURA; Y.; KONISHI; T.; YAMAMOTO; S.; AND KISHINO; F.2001. Interactive stereoscopic display for three or more users. In Proceedings of the 28th annual conference on Computer graphics and interactive techniques; ACM Press; 231–240.
LINDKVIST; M. 2002. A State Sharing Toolkit for Interactive Applications. Master’s thesis; Royal Institute of Technology.
LINDSTROM; P.; KOLLER; D.; RIBARSKY; W.; HODGES; L.; AND FAUST; N. 1997. An integrated global gis and visual simulation system. Misc GIT-GVU-97-07; Georgia Institute of Technology.
SEIPEL; S.; AND AHRENBERG; L. 2002. Distributed rendering in heterogeneous display environments - a functional framework design and performance assessment. In Proc. Annual SIGRAD Conference 2002.
SINGHAL; S.; AND ZYDA; M. 1999. Networked virtual environments: design and implementation. ACM Press/Addison-Wesley Publishing Co.
SMALLMAN; H. S.; OONK; H. M.; AND JOHN; M. S. 2001. Symbicons: Advanced symbology for two-dimensional and threedimensional displays. Tech. Rep. TR-1850; SPAWAR Systems Center San Diego.
SUNDIN; C.; AND FRIMAN; H.; Eds. 2000. ROLF 2010 - The Way Ahead and The First Step. Elanders Gotab.
SUTHERLAND; I. E. 1968. A head-mounted three-dimensional display. In AFIPS Conference Proceedings; Thompson Book Co.; vol. 33; 757–764.
