Acquisition of Spherical Image by Fish-eye Conversion Lens

Authors:
Shigang Li;Masao Nakano;Norishige Chiba
Affiliations:
Iwate University, Japan;Iwate University, Japan;Iwate University, Japan
Venue:
VR '04 Proceedings of the IEEE Virtual Reality 2004
Year:
2004

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Abstract

In this paper, we propose a novel method of calibrating aspherical image capture system which acquires spherical imagesby using a pair of fish-eye conversion lenses with the field ofview more than hemisphere, respectively. We first exploit thevanishing points for estimating internal parameters of a camerawith the fish-eye conversion lens and the relative orientationbetween the both of fish-eye cameras. Then, these parametersare refined by computing the correlation of the overlapping partsof the two images.