Gilbert Pradel

Learn More
Autism is a complex neuropsychological disorder characterized by qualitative alterations in social interaction and interpersonal communication. The aim of this study is to estimate the interaction between autistic children and a mobile toy robot during free spontaneous game play. The duration of different criteria including eye contact, touch, manipulation,(More)
This paper describes a frescoes based method aiming at the representation of an indoor environment for mobile robot navigation. In particular, it shows fresco's landmarks construction and two selection criteria: barycentre and resemblance. The experimental results yield optimal threshold values for the above mentioned criteria, leading to the development of(More)
Autonomous mobile robot navigation systems are based on three principal kinds of techniques: map-based navigation, map-building-based navigation and mapless navigation. We propose a method for symbolic trajectory description in unknown indoor environments. The chosen form uses a panoramic description called fresco. The method uses distance measurements from(More)
Immune evasion is a strategy used by pathogenic microbes to evade the host immune system in order to ensure successful propagation. Immune evasion is particularly important for the blood stages of Plasmodium falciparum, the causative agent of the deadly disease malaria tropica. Because Plasmodium blood stage parasites require human erythrocytes for(More)
In this paper we consider the problem of non-metric/qualitative environment representation for frescoes based autonomous robot navigation. Within this framework, the problem of selecting meaningful set of frescoes and some possible solutions are analysed and compared. Experimental results using six different approaches (resemblance, barycentre, Hamming and(More)
Autonomous mobile robot navigation systems are based on three principal kinds of techniques: map-based navigation, map-building-based navigation and mapless navigation. We propose a mapless method for trajectory description in unknown indoor environments. The method uses distance measurements from a 2D laser range finder, digitises the robot's visibility(More)
  • 1