Four-point-algorithm for the recovery of the pose of a one-dimensional camera with unknown focal length

被引：4

作者：

Penne, R. ^{[1
,2
]}

Veraart, J. ^{[3
]}

Abbeloos, W. ^{[1
]}

Mertens, L. ^{[1
]}

机构：

[1] Karel de Grote Hgsk, Dept Appl Engn, Antwerp, Belgium

[2] Univ Antwerp, Dept Math, B-2020 Antwerp, Belgium

[3] Univ Antwerp, Dept Phys, Vis Lab, B-2020 Antwerp, Belgium

来源：

IET COMPUTER VISION | 2012年 / 6卷 / 04期

关键词：

CALIBRATION;

D O I：

10.1049/iet-cvi.2010.0192

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The authors give an algorithm for recovering the centre and view direction of a one-dimensional camera with known principal point but unknown focal distance, by means of one view with four recognised landmarks. The involved algebra is reduced to solving a quadratic equation. This 4-point-method appears to be more robust than the existing 5-point-algorithm for locating a totally uncalibrated camera by means of chasles conics. On the other hand, the authors' method can offer an alternative for the triangulation method if the value of the focal length is unknown or unreliable (e. g. because of autozoom).

引用

页码：314 / 323

页数：10