Parameter Estimation Variance of the Single Point Active Alignment Method in Optical See-Through Head Mounted Display Calibration
2011 (English)In: Proceedings of the IEEE Virtual Reality Conference / [ed] Michitaka Hirose, Benjamin Lok, Aditi Majumder and Dieter Schmalstieg, Piscataway, NJ, USA: IEEE , 2011, 27-24 p.Conference paper (Refereed)
The parameter estimation variance of the Single Point Active Alignment Method (SPAAM) is studied through an experiment where 11 subjects are instructed to create alignments using an Optical See-Through Head Mounted Display (OSTHMD) such that three separate correspondence point distributions are acquired. Modeling the OSTHMD and the subject's dominant eye as a pinhole camera, findings show that a correspondence point distribution well distributed along the user's line of sight yields less variant parameter estimates. The estimated eye point location is studied in particular detail. Thefindings of the experiment are complemented with simulated datawhich show that image plane orientation is sensitive to the numberof correspondence points. The simulated data also illustrates someinteresting properties on the numerical stability of the calibrationproblem as a function of alignment noise, number of correspondencepoints, and correspondence point distribution.
Place, publisher, year, edition, pages
Piscataway, NJ, USA: IEEE , 2011. 27-24 p.
, IEEE Virtual Reality Conference, ISSN 1087-8270
single point active alignment method, camera resectioning, calibration, optical see-through head mounted display, augmented reality
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-67233DOI: 10.1109/VR.2011.5759432ISI: 000297260400004ISBN: 978-1-4577-0037-8 (online), 978-1-4577-0039-2 (print)OAI: oai:DiVA.org:liu-67233DiVA: diva2:408445
IEEE Virtual Reality Conference, pages 27–34, Singapore, Republic of Singapore