A three-dimensional point cloud registration based on entropy and particle swarm optimization

Author:

Zhan Xu12,Cai Yong1,He Ping234ORCID

Affiliation:

1. School of Information Engineering, Southwest University of Science and Technology, Mianyang, People’s Republic of China

2. Cooperative Control & System Optimization Laboratory, Department of Automation, School of Automation and Information Engineering, Sichuan University of Science & Engineering, Yibin, People’s Republic of China

3. Smart Construction Laboratory, The Hong Kong Polytechnic University, Kowloon, Hong Kong

4. Emerging Technologies Institute, Faculty of Engineering, The University of Hong Kong, Hong Kong

Abstract

A three-dimensional (3D) point cloud registration based on entropy and particle swarm algorithm (EPSA) is proposed in the paper. The algorithm can effectively suppress noise and improve registration accuracy. Firstly, in order to find the k-nearest neighbor of point, the relationship of points is established by k-d tree. The noise is suppressed by the mean of neighbor points. Secondly, the gravity center of two point clouds is calculated to find the translation matrix T. Thirdly, the rotation matrix R is gotten through particle swarm optimization (PSO). While performing the PSO, the entropy information is selected as the fitness function. Lastly, the experiment results are presented. They demonstrate that the algorithm is valuable and robust. It can effectively improve the accuracy of rigid registration.

Funder

Open Foundation of Artificial Intelligence Key Laboratory of Sichuan Province

Research Foundation of Department of Education of Sichuan Province

National Natural Science Foundation of China

Open Foundation of Enterprise Informatization and Internet of Things Key Laboratory of Sichuan Province

Open Foundation of Sichuan Provincial Key Lab of Process Equipment and Control

Publisher

SAGE Publications

Subject

Mechanical Engineering

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