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RGB-D image-based real-time pose estimation algorithm for mobile robots with rectangular body

Published online by Cambridge University Press:  11 August 2025

Haoran Tang
Affiliation:
School of Automation and International Joint Research Laboratory for Autonomous Robotic Systems, Hangzhou Dianzi University, Hangzhou, China
Bo Wang*
Affiliation:
School of Automation and International Joint Research Laboratory for Autonomous Robotic Systems, Hangzhou Dianzi University, Hangzhou, China
Xiaofei Zhou
Affiliation:
School of Automation and International Joint Research Laboratory for Autonomous Robotic Systems, Hangzhou Dianzi University, Hangzhou, China
Zhimin Han
Affiliation:
School of Automation and International Joint Research Laboratory for Autonomous Robotic Systems, Hangzhou Dianzi University, Hangzhou, China
Qiang Lv
Affiliation:
School of Automation and International Joint Research Laboratory for Autonomous Robotic Systems, Hangzhou Dianzi University, Hangzhou, China
*
Corresponding author: Bo Wang; Email: wangbo@hdu.edu.cn

Abstract

In this study, we introduce a real-time pose estimation for a class of mobile robots with rectangular body (e.g., the common automatic guided vehicles), by integrating odometry and RGB-D images. First, a lightweight object detection model is designed based on the visual information. Then, a pose estimation algorithm is proposed based on the depth value variations within the target region that exhibit specific patterns due to the robot’s three-dimensional geometry and the observation perspective (termed as “differentiated depth information”). To improve the robustness of object detection and pose estimation, a Kalman filter is further constructed by incorporating odometry data. Finally, a series of simulations and experiments are conducted to demonstrate the method’s effectiveness. Experiments show that the proposed algorithm can achieve a speed over 20 Frames Per Second (FPS) together with a good estimation accuracy on a mobile robot equipped with an Nvidia Jetson Nano Developer KIT.

Information

Type
Research Article
Copyright
© The Author(s), 2025. Published by Cambridge University Press

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