ReflectoSlates: personal overlays for tabletops combining camera-projector systems and retroreflective materials

Diego Martinez, Barney Dennis, Jarrod Knibbe, Gareth Lewis, Andy Haslam, Matthew Whiteley, Eddie Latimer, David Coyle

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

3 Citations (Scopus)


Tabletop systems are great platforms for collaborative work and social interaction. However, many fail to also accommodate contents visible only to some users, or they do so by reducing the surface visible to the rest of the users. We present ReflectoSlates, which combines a chest mounted camera-projector system connected to the user's mobile device and retroreflective sheets (ReflectoSlates). When placed on the tabletop, ReflectoSlates allow users to see their private contents while other users continue to see the tabletop. They can be lifted and moved while still displaying each user's individual content. Users can also interact with them using mid-air gestures detected by the camera-projector system. This way they do not interfere with other users when their contents are in the tabletop, or they can continue to interact with them, when they lift the ReflectoSlate or walk away from the tabletop.

Original languageEnglish
Title of host publicationThe 32nd Annual ACM Conference on Human Factors in Computing Systems
Subtitle of host publicationCHI EA 2014 One of a CHInd - Extended Abstracts - Toronto, Canada April 26-May 1, 2147
EditorsAlbrecht Schmidt, Tovi Grossman
Place of PublicationNew York NY USA
PublisherAssociation for Computing Machinery (ACM)
Number of pages6
ISBN (Print)9781450324748
Publication statusPublished - 2014
Externally publishedYes
EventInternational Conference on Human Factors in Computing Systems 2014 - Metro Toronto Convention Centre, Toronto, Canada
Duration: 26 Apr 20141 May 2014
Conference number: 32nd (Proceedings)


ConferenceInternational Conference on Human Factors in Computing Systems 2014
Abbreviated titleCHI 2014
Internet address


  • Camera-projector System
  • Multi-User
  • Personalized contents
  • Retroreflective Surface
  • Tabletop

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