ITcon Vol. 13, pg. 521-535, http://www.itcon.org/2008/32

Camera constraint on multi-range calibration of augmented reality systems for construction sites

submitted:January 2008
revised:May 2008
published:October 2008
editor(s):Messner J
authors:Do Hyoung Shin, Senior Research Engineer, Ph.D.
Construction Strategic Research Institute, HanmiParsons Co., Ltd.;
shindh@hanmiparsons.com

Wonjo Jung, Graduate Research Assistant,
Civil Engineering, Purdue University;
wjung@purdue.edu

Phillip S. Dunston, Associate Professor, Ph.D.
Civil Engineering, Purdue University;
dunston@purdue.edu
summary:Accurate calibration methods are critical to achieving accurate registration in Augmented Reality (AR) systems. Most calibration methods developed so far focus on achieving the accurate registration within certain view distance ranges. Examination of work tasks in construction, however, indicates that the AR system registration accuracy may not satisfy the accuracy demands of work tasks due to variations in the view distances. This fact indicates the necessity of multi-range calibration for measuring the positions of objects at various view distances with appropriate accuracy. This paper is an initial investigation of the constraints associated with construction sites conducted to ensure the appropriate system accuracy of multi-range AR systems designed for use in these environments.
keywords:Augmented Reality, multi-range calibration, construction, view distance
full text: (PDF file, 0.239 MB)
citation:Shin D, Jung W, Dunston PS (2008). Camera constraint on multi-range calibration of augmented reality systems for construction sites, ITcon Vol. 13, Special issue Virtual and Augmented Reality in Design and Construction, pg. 521-535, http://www.itcon.org/2008/32