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Entropy-Based Search Combined with a Dual Feedforward-Feedback Controller for Landmark Search and Detection for the Navigation of a UAV Using Visual Topological Maps

  • Juan Pablo Fuentes
  • Darío Maravall
  • Javier de Lope
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 253)

Abstract

We introduce a novel method for landmark search and detection for the autonomous indoor navigation of an Unmanned Aerial Vehicle (UAV) using visual topological maps. The main contribution of this paper is the combination of the entropy of an image, with a dual feedforward-feedback controller for the task of object/landmark search and detection. As the entropy of an image is directly related to the presence of a unique object or the presence of different objects inside the image (the lower the entropy of an image, the higher its probability of containing a single object inside it; and conversely, the higher the entropy, the higher its probability of containing several different objects inside it), we propose to implement landmark and object search and detection as a process of entropy maximization which corresponds to an image containing several target landmarks candidates. After converging to an image with maximum entropy containing several candidates for the target landmark, the UAV´s controller switches to the landmark´s homing mode based on a dual feed-forward/feedback controller aimed at driving the UAV towards the target landmark. After the presentation of the theoretical foundations of the entropy-based search. The paper ends with the experimental work performed for its validation.

Keywords

Unmanned Aerial Vehicles Entropy search Vision-based dual anticipatory reactive controllers Nearest Neighbors Methods Topological Maps 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Juan Pablo Fuentes
    • 1
    • 2
  • Darío Maravall
    • 1
    • 2
  • Javier de Lope
    • 1
    • 2
  1. 1.Department of Artificial Intelligence, Faculty of Computer ScienceUniversidad Politécnica de MadridMadridSpain
  2. 2.Centro de Automática y Robótica (UPM-CSIC)Universidad Politécnica de MadridMadridSpain

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