Cited by 93Reinforcement Learning in RoboticsRobotics and Sensor-Based LocalizationRobotic Path Planning Algorithms

A Sim-to-Real Pipeline for Deep Reinforcement Learning for Autonomous Robot Navigation in Cluttered Rough Terrain

Hu, Han, Zhang, Kaicheng, Tan, Aaron Hao, Ruan, Michael, Agia, Christopher George, Nejat, Goldie·2021·IEEE Robotics and Automation Letters

Abstract

Robots that autonomously navigate real-world 3D cluttered environments need to safely traverse terrain with abrupt changes in surface normals and elevations. In this letter, we present the development of a novel sim-to-real pipeline for a mobile robot to effectively learn how to navigate real-world 3D rough terrain environments. The pipeline uses a deep reinforcement learning architecture to learn a navigation policy from training data obtained from the simulated environment and a unique combination of strategies to directly address the reality gap for such environments. Experiments in the real-world 3D cluttered environment verified that the robot successfully performed point-to-point navigation from arbitrary start and goal locations while traversing rough terrain. A comparison study between our DRL method, classical, and deep learning-based approaches showed that our method performed better in terms of success rate, and cumulative travel distance and time in a 3D rough terrain environment.

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Crossref · 10.1109/lra.2021.3093551

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Authors
Hu, H., Zhang, K., Tan, A. H., Ruan, M., Agia, C. G., & Nejat, G.
Affiliations
University of Toronto (CA)
Venue
IEEE Robotics and Automation Letters
Published
2021-10
Volume
6
Issue
4
Pages
6569-6576
ISSN
  • 2377-3766 (ISSN-L)
  • 2377-3774
OpenAlex
W3176880374
Cited by
93
References
35
Citations by year
2026: 11 · 2025: 20 · 2024: 24 · 2023: 17 · 2022: 18 · 2021: 3
FWCI
5.48
Type
journal article
Language
en
Open access
closed
Locations
IEEE Robotics and Automation Letters (publishedVersion)
Funders
  • Natural Sciences and Engineering Research Council of Canada
  • Canada Research Chairs
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Reinforcement Learning in Robotics
  • Physical Sciences › Engineering › Aerospace Engineering › Robotics and Sensor-Based Localization
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Robotic Path Planning Algorithms
Keywords
sim-to-real transfer, deep reinforcement learning, robot navigation, uneven terrain, cluttered environments, mobile robots, reality gap, 3D terrain, point-to-point navigation

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