Home/Topological Path Planning For Crowd Navigation

Topological Path Planning For Crowd Navigation

Chao Cao
Master's Thesis, Tech. Report, CMU-RI-TR-19-18, May, 2019

Download Publication

Copyright notice: This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

Abstract

Real-time navigation in dense human environments has been a challenging problem in robotics for years. Most existing path planners fail to account for the dynamics of pedestrians because introducing time as an additional dimension in search space is computationally prohibitive. Alternatively, most local motion planners only address imminent collision avoidance and fail to offer long-term optimality. In this work, we present an approach, called Dynamic Channels, to solve this global to local quandary. Our method combines the high-level topological path planning with low-level motion planning into a complete pipeline. By formulating the path planning problem as graph-searching in the triangulation space, our planner is able to explicitly reason about the obstacle dynamics and capture the environmental change efficiently. We evaluate the efficiency and performance of our approach on public pedestrian datasets and compare it to a state-of-the-art planning algorithm for dynamic obstacle avoidance.


@mastersthesis{Cao-2019-113013,
author = {Chao Cao},
title = {Topological Path Planning For Crowd Navigation},
year = {2019},
month = {May},
school = {},
address = {Pittsburgh, PA},
number = {CMU-RI-TR-19-18},
keywords = {motion planning, dynamic obstacles, crowd navigation, topology},
} 2019-05-16T17:08:31-04:00