Calibration of central omnidirectional cameras via the viewing sphere

Ying Lin; Xiaojin Gong; Jilin Liu

doi:10.1117/1.OE.51.7.077207

18 July 2012 Calibration of central omnidirectional cameras via the viewing sphere

Ying Lin, Xiaojin Gong, Jilin Liu

Author Affiliations +

Optical Engineering, Vol. 51, Issue 7, 077207 (July 2012). https://doi.org/10.1117/1.OE.51.7.077207

Abstract

We propose a robust calibration method for central omnidirectional cameras. It makes use of two mutually orthogonal sets of parallel lines. Based on the unified sphere model, the intrinsic parameters are initialized by two pairs of vanishing points in the image plane. Furthermore, the extrinsic parameters are estimated based on two geometric preservations of the two line sets on the viewing sphere. We test the method on both simulated and real data. The simulated experiments show the effectiveness of the proposed method. Experiments with respect to calibration results and validation of extrinsic parameters for real images prove that the proposed method has higher accuracy compared with Mei's toolbox.

Citation Download Citation

Ying Lin, Xiaojin Gong, and Jilin Liu "Calibration of central omnidirectional cameras via the viewing sphere," Optical Engineering 51(7), 077207 (18 July 2012). https://doi.org/10.1117/1.OE.51.7.077207

Published: 18 July 2012

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available