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  • Research Article
  • Open Access

Automatic Evaluation of Landmarks for Image-Based Navigation Update

EURASIP Journal on Advances in Signal Processing20092009:467549

Received: 29 July 2008

Accepted: 26 March 2009

Published: 17 May 2009


The successful mission of an autonomous airborne system like an unmanned aerial vehicle (UAV) strongly depends on its accurate navigation. While GPS is not always available and pose estimation based solely on Inertial Measurement Unit (IMU) drifts, image-based navigation may become a cheap and robust additional pose measurement device. For the actual navigation update a landmark-based approach is used. It is essential that the used landmarks are well chosen. Therefore we introduce an approach for evaluating landmarks in terms of the matching distance, which is the maximum misplacement in the position of the landmark that can be corrected. We validate the evaluations with our 3D reconstruction system working on data captured from a helicopter.


  • Information Technology
  • Quantum Information
  • Unmanned Aerial Vehicle
  • Measurement Unit
  • Full Article

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Authors’ Affiliations

FGAN-FOM Research Institute for Optronics and Pattern Recognition, Ettlingen, Germany


© S. Lang and M. Kirchhof. 2009

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.