PIVO: Probabilistic Inverse Velocity Obstacle for Navigation under Uncertainty

P. S. Naga Jyotish*1 Yash Goel*1 A. V. S. Sai Bhargav Kumar1 K. Madhava Krishna1

1 IIIT Hyderabad, India

In this paper, we present an algorithmic framework which computes the collision free velocities for the robotin a human shared dynamic and uncertain environment. We extend the concept of Inverse Velocity Obstacle (IVO) to a probabilistic variant to handle the state estimation and motion uncertainties that arise due to the other participants of the environment. These uncertainties are modeled as non-parametric probability distributions. In our PIVO: Probabilistic Inverse Velocity Obstacle, we propose the collision-free navigation as an optimization problem by reformulating the velocity condi-tions of IVO as chance constraints that takes the uncertainty into account. The space of collision-free velocities that result from the presented optimization scheme are associated to a confidence measure as a specified probability. We demonstratethe efficacy of our PIVO through numerical simulations and demonstrating its ability to generate safe trajectories under highly uncertain environments.