Journal
ROBOTICS AND AUTONOMOUS SYSTEMS
Volume 30, Issue 1-2, Pages 155-180Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0921-8890(99)00070-6
Keywords
visual navigation; homing; hippocampus; place recognition; on-line learning; autonomous robot; neural network architecture; motivations; action selection
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In this paper, we describe how a mobile robot under simple Visual control can retrieve a particular goal location in an open environment. Our model neither needs a precise map nor to learn all the possible positions in the environment. The system is a neural architecture inspired by neurobiological analysis of how visual patterns named landmarks an recognized. The robot merges these visual informations and their azimuth to build a plastic representation of its location. This representation is used to learn the best movement to reach the goal. A simple and fast on-line learning of a few places located near the goal allows this goal to be reached from anywhere in its neighborhood, The system uses only a very rough representation of the robot environment and presents very high generalization capabilities. We describe an efficient implementation of autonomous and motivated navigation tested on our robot in real indoor environments. We show the limitations of the model and its possible extensions, (C) 2000 Elsevier Science B.V. All rights reserved.
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