A hybrid approach for simulating human motion in constrained environments

Abstract

We present a new algorithm to generate plausible motions for high-DOF human-like articulated figures in constrained environments with multiple obstacles. Our approach is general and makes no assumptions about the articulated model or the environment. The algorithm combines hierarchical model decomposition with sample-based planning to efficiently compute a collision-free path in tight spaces. Furthermore, we use path perturbation and replanning techniques to satisfy the kinematic and dynamic constraints on the motion. In order to generate realistic human-like motion, we present a new motion blending algorithm that refines the path computed by the planner with motion capture data to compute a smooth and plausible trajectory. We demonstrate the results of generating motion corresponding to placing or lifting object, walking, and bending for a 38-DOF articulated model. Copyright © 2010 John Wiley & Sons, Ltd.

We present a hybrid approach to generate plausible motions for high-DOF human-like articulated figures in constrained environment with multiple obstacles. The method combines motion planning and motion blending techniques to efficiently produce natural and collision-free human motion for different tasks.

Index Terms

• Computer systems organization

  • Embedded and cyber-physical systems

    • Robotics

• Computing methodologies

  • Artificial intelligence

    • Control methods

      • Robotic planning

    • Planning and scheduling

      • Robotic planning

  • Computer graphics

    • Animation

      • Motion capture