SearchLight – A Lightweight Search Function for Pervasive Environments

  • Andreas Butz
  • Michael Schneider
  • Mira Spassova
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3001)


We present a lightweight search function for physical objects in instrumented environments. Objects are tagged with optical markers which are scanned by a steerable camera and projector unit on the ceiling. The same projector can then highlight the objects when given the corresponding marker ID. The process is very robust regarding calibration, and no 3D model of the environment is needed. We discuss the scenario of finding books in a library or office environment and several extensions currently under development.


Augmented Reality Optical Marker Mobile Augmented Reality Pervasive Environment Projector Unit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Andreas Butz
    • 1
  • Michael Schneider
    • 1
  • Mira Spassova
    • 1
  1. 1.Department of Computer ScienceSaarland UniversitySaarbrückenGermany

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