A differential GPS carrier phase technique for precision outdoor AR tracking

Author

Fong, W.T. ; Ong, S.K. ; Nee, A.Y.C.

Author_Institution

Mech. Eng. Dept., Nat. Univ. of Singapore, Singapore

fYear

2008

fDate

15-18 Sept. 2008

Firstpage

25

Lastpage

28

Abstract

This paper presents a differential GPS carrier phase technique for 3D outdoor position tracking in mobile augmented reality (AR) applications. It has good positioning accuracy, low drift and jitter, and low computation requirement. It eliminates the resolution of integer ambiguities. The position from an initial point is tracked by accumulating the displacement in each time step, which is determined using Differential Single Difference. Preliminary results using low cost GPS receivers show that the position error is 10 cm, and the drift is 0.001 ms^-1, which can be compensated using linear models. Stable and accurate augmentations in outdoor scenes are demonstrated.

Keywords

Global Positioning System; augmented reality; mobile computing; tracking; 3D outdoor position tracking; differential GPS carrier phase; differential single difference; integer ambiguities; mobile augmented reality; precision outdoor AR tracking; Augmented reality; Costs; Global Positioning System; Information systems; Jitter; Layout; Mechanical engineering; Multimedia systems; Phase measurement; Position measurement; Global Positioning System; H.5.1 Multimedia Information Systems: Artificial, augmented, and virtual realities; H.5.2 User Interfaces: Input devices; Position tracking; differential carrier phase; outdoor augmented reality;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed and Augmented Reality, 2008. ISMAR 2008. 7th IEEE/ACM International Symposium on

Conference_Location

Cambridge

Print_ISBN

978-1-4244-2840-3

Electronic_ISBN

978-1-4244-2859-5

Type

conf

DOI

10.1109/ISMAR.2008.4637319

Filename

4637319