Holger Schnadelbach

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Publications by Holger Schnadelbach (bibliography)

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» 2006 «

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Schnadelbach, Holger, Penn, Alan, Steadman, Phil, Benford, Steve, Koleva, Boriana and Rodden, Tom (2006): Moving office: inhabiting a dynamic building. In: Proceedings of ACM CSCW06 Conference on Computer-Supported Cooperative Work 2006. pp. 313-322. Available online

Mixed Reality Architecture (MRA) supports distributed teams in their everyday work activities by linking multiple physical spaces across a shared three-dimensional virtual world. User configurable audio-visual connections give the inhabitants of MRA full control over whom they want to be in contact with and when they make themselves available, as well as over the overall configuration. We report on the design of MRA, its deployment in an office environment and results from a long-term observational study. The study shows that MRA supports the management of awareness, social interaction and privacy well, that the architectural design features are crucial for this process and that the dynamic architectural topology of MRA and social interaction within it are linked in a fundamental way.

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» 2002 «

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Schnadelbach, Holger, Koleva, Boriana, Flintham, Martin, Fraser, Mike, Izadi, Shahram, Chandler, Paul, Foster, Malcolm, Benford, Steve and Rodden, Tom (2002): The augurscope: a mixed reality interface for outdoors. In: Terveen, Loren (ed.) Proceedings of the ACM CHI 2002 Conference on Human Factors in Computing Systems Conference April 20-25, 2002, Minneapolis, Minnesota. pp. 9-16.

» 2001 «

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Koleva, Boriana, Taylor, Ian, Benford, Steve, Fraser, Mike, Greenhalgh, Chris, Schnadelbach, Holger, Lehn, Dirk vom, Heath, Christian and Adams, Matt (2001): Orchestrating a Mixed Reality Performance. In: Beaudouin-Lafon, Michel and Jacob, Robert J. K. (eds.) Proceedings of the ACM CHI 2001 Human Factors in Computing Systems Conference March 31 - April 5, 2001, Seattle, Washington, USA. pp. 38-45. Available online

A study of a professional touring mixed reality performance called Desert Rain yields insights into how performers orchestrate players' engagement in an interactive experience. Six players at a time journey through an extended physical and virtual set. Each sees a virtual world projected onto a screen made from a fine water spray. This acts as a traversable interface, supporting the illusion that performers physically pass between real and virtual worlds. Live and video-based observations of Desert Rain, coupled with interviews with players and the production team, have revealed how the performers create conditions for the willing suspension of disbelief, and how they monitor and intervene in the players experience without breaking their engagement. This involves carefully timed performances and "off-face" and "virtual" interventions. In turn, these are supported by the ability to monitor players' physical and virtual activity through asymmetric interfaces.

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Koleva, Boriana, Schnadelbach, Holger, Benford, Steve and Greenhalgh, Chris (2001): Experiencing a presentation through a mixed reality boundary. In: Ellis, Clarence and Zigurs, Ilze (eds.) Proceedings of the International ACM SIGGROUP Conference on Supporting Group Work 2001 September 30 - October 3, 2001, Boulder, Colorado, USA. pp. 71-80. Available online

We describe a pilot study of the use of a mixed reality environment for distributed presentations involving virtual and physical audiences and speakers. Our aims were to establish mutual awareness between all participants; to present physical and virtual worlds as being spatially integrated; and to support moderate sized audiences. We used a mixed reality boundary to join a physical space to a collaborative virtual environment so that the two appeared to be adjacent but distinct components of a single space. Two presentations were staged to a mixed physical and virtual audience, one by a virtual speaker and one by a physical speaker. Each presentation was followed by a question and answer session. Qualitative analysis of semi-structured interviews and video recordings revealed that some degree of mutual awareness was established between participants and that physical participants may have viewed the environment as being more spatially integrated than virtual participants. We propose that improving avatars and video textures in the virtual environment may further enhance the experience.

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» 2000 «

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Koleva, Boriana, Schnadelbach, Holger, Benford, Steve and Greenhalgh, Chris (2000): Traversable Interfaces Between Real and Virtual Worlds. In: Turner, Thea, Szwillus, Gerd, Czerwinski, Mary, Peterno, Fabio and Pemberton, Steven (eds.) Proceedings of the ACM CHI 2000 Human Factors in Computing Systems Conference April 1-6, 2000, The Hague, The Netherlands. pp. 233-240. Available online

Traversable interfaces establish the illusion that virtual and physical worlds are joined together and that users can physically cross from one to the other. Our design for a traversable interface combines work on tele-embodiment, mixed reality boundaries and virtual environments. It also exploits non-solid projection surfaces, of which we describe four examples. Our design accommodates the perspectives of users who traverse the interface and also observers who are present in the connected physical and virtual worlds, an important consideration for performance and entertainment applications. A demonstrator supports encounters between members of our laboratory and remote visitors.

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Changes to this page (author)

25 Feb 2010: Enabled abstracts to be shown on Holger Schnadelbach's author page.
22 Jun 2007: Author was edited
28 Apr 2003: Added the author to the bibliography

Publication statistics

Publication period:2000-2006
Publication count:5
Number of co-authors:15



Productive colleagues

Holger Schnadelbach's 3 most productive colleagues in number of publications:

Steve Benford:107
Tom Rodden:87
Chris Greenhalgh:53


Collaboration count

Number of publications with 3 favourite co-authors:

Boriana Koleva:5
Steve Benford:5
Chris Greenhalgh:3

 

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Mar 17

More and more we're being asked to live with technology that is technically reliable, because it was created to fit our knowledge of the physical world, but that is so complex or so counterintuitive that it's actually unusable by most human beings.

-- Kim Vicente, The Human Factor, p. 17.

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