An Occlusion-Capable Optical See-through Head Mount Display for Supporting Co-located Collaboration

  • Authors:
  • Kiyoshi Kiyokawa;Mark Billinghurst;Bruce Campbell;Eric Woods

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ISMAR '03 Proceedings of the 2nd IEEE/ACM International Symposium on Mixed and Augmented Reality
  • Year:
  • 2003

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Abstract

An ideal augmented reality (AR) display for multi-userco-located collaboration should have following threefeatures: 1) Any virtual object should be able to be shownat any arbitrary position, e.g. a user can see a virtualobject in front of other users' faces. 2) Correct occlusionof virtual and real objects should be supported. 3) Thereal world should be naturally and clearly visible, whichis important for face-to-face conversation. We have beendeveloping an optical see-through display, ELMO(Enhanced see-through display using an LCD panel forMutual Occlusion), that satisfies these three requirements.While previous prototype systems were not practical dueto their size and weight, we have come up with animproved optics design which has reduced size and islightweight enough to wear. In this paper, thecharacteristics of typical multi-user three-dimensionaldisplays are summarized and the design details of thelatest optics are then described. Finally, a collaborativeAR application employing the new display and its userexperience are explained.