Loosely-coupled vs. tightly-coupled mixed reality: Using the environment metaphorically

Myungho Lee, Myonghee Lee, Gerard J. Kim

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

1 Citation (Scopus)

Abstract

Traditionally, an implementation of mixed reality systems requires tight and accurate spatial/visual registration between the real and virtual objects. Any meaningful interaction is only possible within this "tightly" coupled mixed reality world. Thus, the degree of this spatial and explicit registration has been regarded one of the most important factors in the usability of mixed reality systems. In this paper, we argue that the "loose" and "implicit" association may be sufficient to establish a unified mixed reality space. More specifically, we introduce, what is called, the "Loosely coupled Mixed Reality (LMR)," in which the user maintains a unified mixed reality space with minimal explicit association cues between the real and virtual space. To help this binding process, an implicit but intuitive environment metaphor between the two realities is used. We ran a simple experiment to compare the task performance, as a measure of the coherency of the perceived mixed reality space, of our approach to the standard augmented reality. Our results have shown that despite the lack of visual/spatial registration feedback and thus having to rely on the imagination of the user, the perception of the mixed reality space and usability of LMR did not degrade much from those of the conventional AR. LMR is a new pragmatic form of mixed reality medium with reduced requirements for exact tracking and rich visual feedback, especially suitable for mobile devices.

Original languageEnglish
Title of host publicationProceedings - VRCAI 2009
Subtitle of host publication8th International Conference on Virtual Reality Continuum and its Applications in Industry
Pages345-349
Number of pages5
DOIs
Publication statusPublished - 2009
EventVRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry - Yokohama, Japan
Duration: 2009 Dec 142009 Dec 15

Publication series

NameProceedings - VRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry

Other

OtherVRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry
CountryJapan
CityYokohama
Period09/12/1409/12/15

Keywords

  • Interaction medium
  • Mixed reality
  • Registration

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Science Applications

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