Acta Geodaetica et Cartographica Sinica ›› 2019, Vol. 48 ›› Issue (10): 1305-1319.doi: 10.11947/j.AGCS.2019.20190007

• Cartography and Geoinformation • Previous Articles     Next Articles

A vision-aided geo-registration method for outdoor ARGIS in urban environments based on 2D maps

DENG Chen1, YOU Xiong1, ZHANG Weiwei1, ZHI Meixia2   

  1. 1. Institute of Geospatial Information, Information Engineering University, Zhengzhou 450052, China;
    2. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China
  • Received:2019-01-06 Revised:2019-05-28 Online:2019-10-20 Published:2019-10-24

Abstract: The accuracy of the outdoor 6DOF absolute pose obtained by the current portable pose sensor is usually insufficient in urban environments, which makes the geo-registration accuracy of outdoor AR poorly. Aiming at this issue, a method and technical framework for outdoor vision-aided localization is proposed with 2D maps to improve the outdoor ARGIS geo-registration accuracy. Based on the initial pose obtained by the pose sensor, the basic principles of image localization and pose optimization based on 2D maps are expounded in detail. The experimental results show that the proposed method can effectively optimize the initial pose obtained by the pose sensor, and thus improve the geo-registration accuracy of outdoor AR.

Key words: outdoor augmented reality, ARGIS, geo-registration, vision-aided registration, hybrid registration, position-posture sensor, evaluation of registration accuracy, geo-localization

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