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Proceedings Paper

Calibration method for an omnidirectional multicamera system
Author(s): Sei Ikeda; Tomokazu Sato; Naokazu Yokoya
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Paper Abstract

Telepresence systems using an omnidirectional image sensor enable us to experience remote site. A omnidirectional multi-camera system is more useful to acquire outdoor scenes than a monocular camera system, because the multi-camera system can easily capture high-resolution omnidirectional images. However, exact calibration of the camera system is necessary to virtualize the real world accurately. In this paper, we describe a geometric and photometric camera calibration and a panorama movie generation method for the omnidirectional multi-camera system. In the geometric calibration, intrinsic and extrinsic parameters of each camera are estimated using a calibration board and a laser measurement system called total station. In the photometric calibration, the limb darkening and color balances among the cameras are corrected. The result of the calibration is used in the panorama movie generation. In experiments, we have actually calibrated the multi-camera system and have generated spherical panorama movies by using the estimated camera parameters. A telepresence system was prototyped in order to confirm that the panorama movie can be used for telepresence well. In addition, we have evaluated the discontinuity in generated panoramic images.

Paper Details

Date Published: 30 May 2003
PDF: 9 pages
Proc. SPIE 5006, Stereoscopic Displays and Virtual Reality Systems X, (30 May 2003); doi: 10.1117/12.474073
Show Author Affiliations
Sei Ikeda, Nara Institute of Science and Technology (Japan)
Tomokazu Sato, Nara Institute of Science and Technology (Japan)
Naokazu Yokoya, Nara Institute of Science and Technology (Japan)


Published in SPIE Proceedings Vol. 5006:
Stereoscopic Displays and Virtual Reality Systems X
Andrew J. Woods; John O. Merritt; Stephen A. Benton; Mark T. Bolas, Editor(s)

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