Visual servoing for autonomous doorway passing in a wheelchair using a single doorpost

Vishnu Karakkat Narayanan 1 François Pasteau 1 Marie Babel 1 François Chaumette 1
1 Lagadic - Visual servoing in robotics, computer vision, and augmented reality
CRISAM - Inria Sophia Antipolis - Méditerranée , Inria Rennes – Bretagne Atlantique , IRISA-D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE
Abstract : Constrained spaces like doorways make efficient navigation using a wheelchair difficult and hazardous, especially in the cases where the user suffers from motor impairments. This paper introduces a monocular vision based autonomous framework for the fundamental task of doorway passing in an electric wheelchair. We propose a novel Lyapunov-based visual control process which is used to generate a smooth trajectory about a single doorpost. The scheme relies on line features which represent the doorposts in an image to calculate the wheelchair motion. This framework ensures that the wheelchair is able to pass the doorway regardless of its starting position. Results of experiments on a robotic wheelchair show that the system is able to perform robustly in different corridors with a variety of door representations.
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Vishnu Karakkat Narayanan, François Pasteau, Marie Babel, François Chaumette. Visual servoing for autonomous doorway passing in a wheelchair using a single doorpost. IEEE/RSJ IROS Workshop on Assistance and Service Robotics in a Human Environment, ASROB, Sep 2014, Chicago, United States. ⟨hal-01060196⟩

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