Qualitative vision for the guidance of legged robots in unstructured environments

Elisa Martínez, Carme Torras

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Visual procedures especially tailored to the constraints and requirements of a legged robot are presented. They work for an uncalibrated camera, with pan and zoom, freely moving towards a stationary target in an unstructured environment that may contain independently moving objects. The goal is to dynamically analyse the image sequence in order to extract information about the robot motion, the target position and the environment structure. The development is based on the deformations of an active contour fitted to the target. Experimental results confirm that the proposed approach constitutes a promising alternative to the prevailing trend based on the costly computation of displacement or velocity fields.

Original languageEnglish
Pages (from-to)1585-1599
Number of pages15
JournalPattern Recognition
Issue number8
Publication statusPublished - Aug 2001
Externally publishedYes


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