Machine Vision and Applications

, Volume 25, Issue 1, pp 211–227

Real-time landing place assessment in man-made environments

  • Xiaolu Sun
  • C. Mario Christoudias
  • Vincent Lepetit
  • Pascal Fua
Original Paper

DOI: 10.1007/s00138-013-0560-7

Cite this article as:
Sun, X., Christoudias, C.M., Lepetit, V. et al. Machine Vision and Applications (2014) 25: 211. doi:10.1007/s00138-013-0560-7

Abstract

We propose a novel approach to the real-time landing site detection and assessment in unconstrained man-made environments using passive sensors. Because this task must be performed in a few seconds or less, existing methods are often limited to simple local intensity and edge variation cues. By contrast, we show how to efficiently take into account the potential sites’ global shape, which is a critical cue in man-made scenes. Our method relies on a new segmentation algorithm and shape regularity measure to look for polygonal regions in video sequences. In this way, we enforce both temporal consistency and geometric regularity, resulting in very reliable and consistent detections. We demonstrate our approach for the detection of landable sites such as rural fields, building rooftops and runways from color and infrared monocular sequences significantly outperforming the state-of-the-art.

Keywords

Automated landing Hazard detection Component tree Image segmentation Shape analysis 

Supplementary material

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Xiaolu Sun
    • 1
  • C. Mario Christoudias
    • 1
  • Vincent Lepetit
    • 1
  • Pascal Fua
    • 1
  1. 1.Ecole de Polytechnique de LausanneLausanneSwitzerland