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dc.contributor.authorApperley, Mark
dc.contributor.authorMcLeod, Laurie
dc.contributor.authorMasoodian, Masood
dc.contributor.authorPaine, Lance
dc.contributor.authorPhillips, Malcolm
dc.contributor.authorRogers, Bill
dc.contributor.authorThomson, Kirsten
dc.date.accessioned2008-10-10T03:58:47Z
dc.date.available2008-10-10T03:58:47Z
dc.date.issued2002-07
dc.identifier.citationApperly, M., McLeod, L., Masoodian, M., Paine, L., Phillips, M., Rogers, B. & Thomson, K. (2002). Use of video shadow for small group interaction awareness on a large interactive display surface. (Working paper 07/02). Hamilton, New Zealand: University of Waikato, Department of Computer Science.en_US
dc.identifier.issn1170-487X
dc.identifier.urihttps://hdl.handle.net/10289/1015
dc.description.abstractThis paper reports work done as part of the Large Interactive Display Surface (LIDS) project at the University of Waikato. One application of the LIDS equipment is distributed meeting support. In this context large display surfaces are used as shared workspaces by people at collaborating sites. A meeting with start with a shared presentation document, typically and agenda document with summary and detail on agenda items as required. During the meeting, annotations with be made on the shared document, and new pages will be added with notes and drawings. To prevent access collisions and generally mediate use of the shared space, mechanisms to provide awareness of actions of people at other sites are required. In our system a web camera is used to capture a low-resolution image of the person/people near the board on each side. Rather than transmit the image directly we computed a shadow/silhouette. The shadow is displayed behind other screen content. This provides awareness of position and impending write actions and allows intentional pointing to locations of the screen. It also has the advantage of being transmitted with low bandwidth, being relatively insensitive to low frame rates, and minimizing visual interference with substantive data being displayed on the screen.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherUniversity of Waikato, Department of Computer Scienceen_US
dc.relation.ispartofseriesComputer Science Working Papers
dc.subjectcomputer scienceen_US
dc.subjectcomputer supported collaborative worken_US
dc.subjectshadowen_US
dc.subjectvideoen_US
dc.subjectcollaborationen_US
dc.subjectsilhouetteen_US
dc.subjectLarge Interactive Display Surfaceen_US
dc.subjectwhiteboard metaphoren_US
dc.subjectawarenessen_US
dc.titleUse of video shadow for small group interaction awareness on a large interactive display surfaceen_US
dc.typeWorking Paperen_US
uow.relation.series07/02


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