Panoramic annular lens distortion correction using the cylinder perspective projection model

被引：1

作者：

Xiao, Xiao ^{[1
]}

Wang, Wei ^{[1
]}

Bi, Kai ^{[1
]}

机构：

[1] School of Telecommunication Engineering, Xidian Univ.

来源：

Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2013年 / 40卷 / 01期

关键词：

Panoramic annular lens; Radial distortion; Spherical perspective projection; Tangential distortion;

D O I：

10.3969/j.issn.1001-2400.2013.01.016

中图分类号：

学科分类号：

摘要：

The cylinder perspective projection model is proposed to correct the image distortion according to the imaging feature of the PAL. In the cylinder projection, model a line in the space is not projected to a line but an ellipse whose short axis is constant. Firstly, the PAL correction model which includes the distortion parameters is constructed. The points on the space line are projected to the points on the cylinder under this model. All spherical points are fitted to the best great circle under the condition that the sum of projection lengths of all points. The distortion parameters are obtained during this procedure. Then the panoramic image is corrected. Simulation and real image experiments demonstrate that the correction results of tangential and radial distortions appear satisfactory. The error is controlled at the sub-pixel level.

引用

页码：87 / 92

页数：5

共 13 条

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