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Simultaneous calibration: a joint optimization approach for multiple Kinect and external cameras

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posted on 09.10.2019, 07:43 by Yajie Liao, Ying Sun, Gongfa Li, Jianyi Kong, Guozhang Jiang, Du Jiang, Haibin CaiHaibin Cai, Zhaojie Ju, Hui Yu, Honghai Liu
Camera calibration is a crucial problem in many applications, such as 3D reconstruction, structure from motion, object tracking and face alignment. Numerous methods have been proposed to solve the above problem with good performance in the last few decades. However, few methods are targeted at joint calibration of multi-sensors (more than four devices), which normally is a practical issue in the real-time systems. In this paper, we propose a novel method and a corresponding workflow framework to simultaneously calibrate relative poses of a Kinect and three external cameras. By optimizing the final cost function and adding corresponding weights to the external cameras in different locations, an effective joint calibration of multiple devices is constructed. Furthermore, the method is tested in a practical platform, and experiment results show that the proposed joint calibration method can achieve a satisfactory performance in a project real-time system and its accuracy is higher than the manufacturer’s calibration.

Funding

National Natural Science Foundation of China (Grant No. 51575407, 51575338, 61273106, 51575412)

EU Seventh Framework Programme (Grant No. 611391)

Wuhan University of Science and Technology graduate students’ short-term study abroad special funds

History

School

  • Science

Department

  • Computer Science

Published in

Sensors

Volume

17

Issue

7

Publisher

MDPI

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by MDPI under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/

Acceptance date

20/06/2017

Publication date

2017-06-24

Copyright date

2017

eISSN

1424-8220

Language

en

Depositor

Mr Haibin Cai. Deposit date: 8 October 2019

Article number

1491

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