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The Visual Computer

, Volume 31, Issue 4, pp 423–440 | Cite as

A human-like learning control for digital human models in a physics-based virtual environment

  • Giovanni De MagistrisEmail author
  • Alain Micaelli
  • Paul Evrard
  • Jonathan Savin
Original Article

Abstract

This paper presents a new learning control framework for digital human models in a physics-based virtual environment. The novelty of our controller is that it combines multi-objective control based on human properties (combined feedforward and feedback controller) with a learning technique based on human learning properties (human-being’s ability to learn novel task dynamics through the minimization of instability, error and effort). This controller performs multiple tasks simultaneously (balance, non-sliding contacts, manipulation) in real time and adapts feedforward force as well as impedance to counter environmental disturbances. It is very useful to deal with unstable manipulations, such as tool-use tasks, and to compensate for perturbations. An interesting property of our controller is that it is implemented in Cartesian space with joint stiffness, damping and torque learning in a multi-objective control framework. The relevance of the proposed control method to model human motor adaptation has been demonstrated by various simulations.

Keywords

Digital human model Motion control Bio-inspired motor control Virtual reality 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Giovanni De Magistris
    • 1
    Email author
  • Alain Micaelli
    • 1
  • Paul Evrard
    • 1
  • Jonathan Savin
    • 2
  1. 1.CEA, LIST, LSIGif-sur-YvetteFrance
  2. 2.Institut national de recherche et de sécurité (INRS)Vand œuvre-l ès-NancyFrance

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