Photoportals: shared references in space and time

Photoportals build on digital photography as a unifying metaphor for reference-based interaction in 3D virtual environments. Virtual photos and videos serve as threedimensional references to objects, places, moments in time and activities of users. Our Photoportals also provide access to intermediate or alternative versions of a scenario and allow the review of recorded task sequences that include life-size representations of the captured users. We propose to exploit such references to structure collaborative activities of collocated and remote users. Photoportals offer additional access points for multiple users and encourage mutual support through the preparation and provision of references for manipulation and navigation tasks. They support the pattern of territoriality with configurable space representations that can be used for private interaction, as well as be shared and exchanged with others.

[1]  Y. Guiard.  Asymmetric division of labor in human skilled bimanual action: the kinematic chain as a model. , 1987, Journal of motor behavior.

[2]  Tony DeRose,et al.  Toolglass and magic lenses: the see-through interface , 1993, SIGGRAPH.

[3]  K. Hinckley,et al.  Passive real-world interface props for neurosurgical visualization , 1994, CHI '94.

[4]  Kimiya Yamaashi,et al.  Courtyard: integrating shared overview on a large screen and per-user detail on individual screens , 1994, CHI Conference Companion.

[5]  Saul Greenberg,et al.  Real time groupware as a distributed system: concurrency control and its effect on the interface , 1994, CSCW '94.

[6]  Randy F. Pausch,et al.  Navigation and locomotion in virtual worlds via flight into hand-held miniatures , 1995, SIGGRAPH.

[7]  Randy Pausch,et al.  Virtual reality on a WIM: interactive worlds in miniature , 1995, CHI '95.

[8]  J. B. Brooke,et al.  SUS: A 'Quick and Dirty' Usability Scale , 1996 .

[9]  Richard C. Waters,et al.  Locales: supporting large multiuser virtual environments , 1996, IEEE Computer Graphics and Applications.

[10]  Steven L. Tanimoto,et al.  Support for cooperatively controlled objects in multimedia applications , 1997, CHI Extended Abstracts.

[11]  Bernd Fröhlich,et al.  The two-user Responsive Workbench: support for collaboration through individual views of a shared space , 1997, SIGGRAPH.

[12]  Mary C. Whitton,et al.  Designing and Building the PIT: a Head-Tracked Stereo Workspace for Two Users , 1998 .

[13]  Randy F. Pausch,et al.  Voodoo dolls: seamless interaction at multiple scales in virtual environments , 1999, SI3D.

[14]  Ian Taylor,et al.  Temporal links: recording and replaying virtual environments , 2000, ACM Multimedia.

[15]  Steve Benford,et al.  Object-focused interaction in collaborative virtual environments , 2000, TCHI.

[16]  B. Bederson,et al.  Designing storytelling technologies to encouraging collaboration between young children , 2000, CHI.

[17]  Chris Greenhalgh,et al.  Inside MASSIVE-3: flexible support for data consistency and world structuring , 2000, CVE '00.

[18]  Steve Benford,et al.  Applications of temporal links: recording and replaying virtual environments , 2002, Proceedings IEEE Virtual Reality 2002.

[19]  Carla Maria Dal Sasso Freitas,et al.  Cooperative object manipulation in immersive virtual environments: framework and techniques , 2002, VRST '02.

[20]  Dieter Schmalstieg,et al.  Application and taxonomy of through-the-lens techniques , 2002, VRST '02.

[21]  Dieter Schmalstieg,et al.  The Studierstube Augmented Reality Project , 2002, Presence: Teleoperators & Virtual Environments.

[22]  Roy A. Ruddle,et al.  Symmetric and asymmetric action integration during cooperative object manipulation in virtual environments , 2002, TCHI.

[23]  Luc Van Gool,et al.  Blue-c: a spatially immersive display and 3D video portal for telepresence , 2003, IPT/EGVE.

[24]  M. Sheelagh T. Carpendale,et al.  Territoriality in collaborative tabletop workspaces , 2004, CSCW.

[25]  Carl Gutwin,et al.  A Descriptive Framework of Workspace Awareness for Real-Time Groupware , 2002, Computer Supported Cooperative Work (CSCW).

[26]  Jonathan Histon,et al.  Avoiding interference: how people use spatial separation and partitioning in SDG workspaces , 2004, CSCW.

[27]  Meredith Ringel Morris,et al.  Beyond "social protocols": multi-user coordination policies for co-located groupware , 2004, CSCW.

[28]  Doug A. Bowman,et al.  Overcoming World in Miniature Limitations by a Scaled and Scrolling WIM , 2006, 3D User Interfaces (3DUI'06).

[29]  Doug A. Bowman,et al.  Design and Evaluation of Navigation Techniques for Multiscale Virtual Environments , 2006, IEEE Virtual Reality Conference (VR 2006).

[30]  Jacob Buur,et al.  Getting a grip on tangible interaction: a framework on physical space and social interaction , 2006, CHI.

[31]  Bernd Fröhlich,et al.  The Bent Pick Ray: An Extended Pointing Technique for Multi-User Interaction , 2006, 3D User Interfaces (3DUI'06).

[32]  P. Debevec,et al.  Rendering for an interactive 360° light field display , 2007, ACM Trans. Graph..

[33]  Hideshi Yamada,et al.  Rendering for an interactive 360° light field display , 2007, ACM Trans. Graph..

[34]  Tovi Grossman,et al.  Collaborative interaction with volumetric displays , 2008, CHI.

[35]  Yvonne Rogers,et al.  Collaboration and interference: awareness with mice or touch input , 2008, CSCW.

[36]  Regan L. Mandryk,et al.  An evaluation of coordination techniques for protecting objects and territories in tabletop groupware , 2009, CHI.

[37]  José Pascual Molina,et al.  An experimental study of collaborative interaction tasks supported by awareness and multimodal feedback , 2009, VRCAI '09.

[38]  Jeff Sauro,et al.  The Factor Structure of the System Usability Scale , 2009, HCI.

[39]  Ferran Argelaguet,et al.  See-through techniques for referential awareness in collaborative virtual reality , 2011, Int. J. Hum. Comput. Stud..

[40]  Bernd Fröhlich,et al.  C1x6: a stereoscopic six-user display for co-located collaboration in shared virtual environments , 2011, SA '11.

[41]  Henry Fuchs,et al.  Encumbrance-free telepresence system with real-time 3D capture and display using commodity depth cameras , 2011, 2011 10th IEEE International Symposium on Mixed and Augmented Reality.

[42]  Harald Reiterer,et al.  Adaptive personal territories for co-located tabletop interaction in a museum setting , 2011, ITS '11.

[43]  Niklas Elmqvist,et al.  Branch-explore-merge: facilitating real-time revision control in collaborative visual exploration , 2012, ITS.

[44]  Raimund Dachselt,et al.  Use your head: tangible windows for 3D information spaces in a tabletop environment , 2012, ITS.

[45]  Bernd Fröhlich,et al.  Immersive Group-to-Group Telepresence , 2013, IEEE Transactions on Visualization and Computer Graphics.