Title
Translation Invariant Global Estimation of Heading Angle Using Sinogram of LiDAR Point Cloud
Abstract
Global point cloud registration is an essential module for localization, of which the main difficulty exists in estimating the rotation globally without initial value. With the aid of gravity alignment, the degree of freedom in point cloud registration could be reduced to 4DoF, in which only the heading angle is required for rotation estimation. In this paper, we propose a fast and accurate global heading angle estimation method for gravity-aligned point clouds. Our key idea is that we generate a translation invariant representation based on Radon Transform, allowing us to solve the decoupled heading angle globally with circular cross-correlation. Besides, for heading angle estimation between point clouds with different distributions, we implement this heading angle estimator as a differentiable module to train a feature extraction network end-to-end. The experimental results validate the effectiveness of the proposed method in heading angle estimation and show better performance compared with other methods.
Year
DOI
Venue
2022
10.1109/ICRA46639.2022.9811750
IEEE International Conference on Robotics and Automation
DocType
Volume
Issue
Conference
2022
1
Citations 
PageRank 
References 
0
0.34
0
Authors
9
Name
Order
Citations
PageRank
Xiaqing Ding1397.49
Xuecheng Xu212.72
Sha Lu300.34
Yanmei Jiao453.11
Mengwen Tan500.34
Rong Xiong67722.86
Huanjun Deng700.68
Mingyang Li827017.60
Yue Wang900.68