Precise radial un-distortion of images

Precise radial un-distortion of images

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 i...

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Hauptverfasser: Mallon, J., Whelan, P.F.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Calibration
Geometrical optics
Inverse problems
Lenses
Manufacturing
Mathematical model
Optical distortion
Polynomials
Predistortion
Taylor series
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Whelan, P.F.
description 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.
doi_str_mv 10.1109/ICPR.2004.1333995
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Calibration
Geometrical optics
Inverse problems
Lenses
Manufacturing
Mathematical model
Optical distortion
Polynomials
Predistortion
Taylor series
title Precise radial un-distortion of images
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