University of Bahrain
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Radial Lens Distortion Calibration from Spheres: Theory and Method

Show simple item record El-Melegy, Moumen T. 2018-07-05T10:15:16Z 2018-07-05T10:15:16Z 2013
dc.identifier.issn 2210-142X
dc.description.abstract This paper addresses the problem of lens distortion calibration from a single image of a sphere. Almost all calibration methods based on spheres have focused on estimating all the camera parameters except the lens distortion ones which are left for another independent calibration process not using spheres. The paper presents for the first time a radial lens distortion calibration method based on the analysis of local shading measures in the sphere image. Several properties of these measures are pointed out and validated. While these measures are robust to noise, they are shown to vary nonlinearly as a function of lens distortion. As such, they can work as a basis for lens distortion calibration. The proposed method is easy to use and requires no specific feature extraction from the images. Experiments on simulated and real data are reported with comparisons to well-known techniques. en_US
dc.language.iso en_US en_US
dc.publisher University of Bahrain en_US
dc.rights Attribution-NonCommercial-ShareAlike 4.0 International *
dc.rights.uri *
dc.subject lens distortion en_US
dc.subject camera calibration en_US
dc.subject image formation en_US
dc.subject local shading analysis en_US
dc.title Radial Lens Distortion Calibration from Spheres: Theory and Method en_US
dc.type Article en_US
dc.volume 02
dc.issue 01
dc.source.title International Journal of Computing and Digital Systems
dc.abbreviatedsourcetitle IJCDS

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