Easy calibration of a head-mounted projective display for augmented reality systems

Chunyu Gao, Hong Hua, Narendra Ahuja

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

12 Scopus citations


Augmented reality (AR) superimposes computer-generated virtual images on the real world to allow users exploring both virtual and real worlds simultaneously. For a successful augmented reality application, an accurate registration of a virtual object with its physical counterpart has to be achieved, which requires precise knowledge of the projection information of the viewing device. The paper proposes a fast and easy off-line calibration strategy based on well-established camera calibration methods. Our method does not need exhausting effort on the collection of world-to-image correspondence data. All the correspondence data are sampled with an image based method and they are able to achieve sub-pixel accuracy. The method is applicable for all AR systems based on optical see-through head-mounted display (HMD), though we took a head-mounted projective display (HMPD) as the example. We first review the calibration requirements for an augmented reality system and the existing calibration methods. Then a new view projection model for optical see through HMD is addressed in detail, and proposed calibration method and experimental result are presented. Finally, the evaluation experiments and error analysis are also included. The evaluation results show that our calibration method is fairly accurate and consistent.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE Virtual Reality 2003, VR 2003
EditorsJim Chen, Bowen Loftin, Ulrich Neumann, Haruo Takemura, Bernd Froehlich
PublisherIEEE Computer Society
Number of pages8
ISBN (Electronic)0769518826
StatePublished - 2003
Event2003 IEEE Virtual Reality, VR 2003 - Los Angeles, United States
Duration: Mar 22 2003Mar 26 2003

Publication series

NameProceedings - IEEE Virtual Reality


Other2003 IEEE Virtual Reality, VR 2003
Country/TerritoryUnited States
CityLos Angeles


  • Augmented reality
  • Calibration
  • Virtual reality

ASJC Scopus subject areas

  • General Engineering


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