当前位置: X-MOL 学术Photogramm. Rec. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Geometric model and assessment of a dual‐fisheye imaging system
The Photogrammetric Record ( IF 2.4 ) Pub Date : 2018-05-15 , DOI: 10.1111/phor.12240
Mariana Batista Campos 1 , Antonio Maria Garcia Tommaselli 1 , José Marcato Junior 2 , Eija Honkavaara 3
Affiliation  

This paper presents a technique for the calibration of a 360° dual imaging system (Ricoh Theta S) composed of two cameras with fisheye lenses specially mounted in a common structure. The experiments are based on calibration with a bundle adjustment using the equidistant fisheye lens model and relative orientation stability constraints, such as distance, base elements and rotation matrix between individual cameras’ coordinate systems. As a result, an equidistant mathematical model using the Conrady–Brown lens distortion model was shown to be suitable for estimating the interior and relative orientation parameters of the Ricoh Theta S. The main contribution presented in this work is a simultaneous bundle adjustment approach with stability constraints on base elements and rotation matrix angles, which achieved accuracies comparable with conventional photogrammetric calibration with perspective cameras.

中文翻译:

双鱼眼成像系统的几何模型和评估

本文介绍了一种用于校准360°双成像系统(Ricoh Theta S)的技术,该系统由两个带有鱼眼镜头的摄像机特别安装在一个通用结构中组成。实验基于使用等距鱼眼镜头模型和相对方向稳定性约束(例如,各个摄像机坐标系之间的距离,基本元素和旋转矩阵)的束调整进行的校准。结果表明,使用Conrady-Brown透镜畸变模型的等距数学模型适用于估算理光Theta S的内部和相对方向参数。这项工作的主要贡献是同时进行了稳定的束调整方法基本元素和旋转矩阵角度的约束,
更新日期:2018-05-15
down
wechat
bug