Extrinsic camera calibration with minimal configuration using cornea model and equidistance constraint

Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Akira Kojima

研究成果: Article査読

2 被引用数 (Scopus)

抄録

In this paper, we propose a novel algorithm to extrinsically calibrate a camera to a 3D reference object that is not directly visible from the camera. We use the spherical human cornea as a mirror and calibrate the extrinsic parameters from its reflection of the reference points. The key contribution of this paper is to present a cornea-reflectionbased calibration algorithm with minimal configuration; there are three reference points and one mirror pose. The proposed algorithm introduces two constraints. First constraint is that the cornea is virtually a sphere, which enables us to estimate the center of the cornea sphere from its projection. Second is the equidistance constraint, which enables us to estimate the 3D position of the reference point by assuming that the center of the camera and reference point are located the same distance from the center of the cornea sphere. We demonstrate the advantages of the proposed method with qualitative and quantitative evaluations using synthesized and real data.

本文言語English
ページ(範囲)20-28
ページ数9
ジャーナルIPSJ Transactions on Computer Vision and Applications
8
DOI
出版ステータスPublished - 2016 2月
外部発表はい

ASJC Scopus subject areas

  • コンピュータ ビジョンおよびパターン認識

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