Makoto YAMAUCHI^* and Kazuyo IWAMOTO

Digital Manufacturing Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8564, Japan

(Received September 2, 2009; Accepted January 5, 2010)

The introduction of information technology in manufacturing can provide valuable support. As such, we have developed a method for supporting a plate bending process that incorporates a line heating method that combines optical shape measurement and an augmented reality (AR) system using a head-mounted display. The accuracy of optical tracking using a fiducial marker is important for such a system. Experiments were conducted to clarify the position and pose errors of a marker detected by the AR system. Marker detection was performed using the ARToolKit software library. Systematic errors caused by misreading a marker edge were theoretically analyzed, and the direction dependence of the experimental errors was found to be well described.

Key words: task support, line heating method, optical shape measurement, augmented reality, AR, head-mounted display, fiducial marker, ARToolKit

^*E-mail address: m.yamauchi@aist.go.jp