Mallon, John and Whelan, Paul F.ORCID: 0000-0001-9230-7656
(2004)
Precise radial un-distortion of images.
In: ICPR 2004 - 17th International Conference on Pattern Recognition, 23-26 August 2004, Cambridge, UK.
ISBN 0-7695-2128-2
Radial image distortion is a frequently observed defect when using wide angle, low focal length lenses. In this paper a new method for its calibration and removal is presented. An inverse distortion model is derived that is accurate to a sub-pixel level, over a broad range of distortion levels. An iterative technique for estimating the models parameters from a single view is also detailed. Results on simulated and real images clearly indicate significantly improved performance compared to existing methods.