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http://hdl.handle.net/10553/46189
Title: | Zoom dependent lens distortion mathematical models | Authors: | Alvarez, Luis Gómez, Luis Henríquez, Pedro |
UNESCO Clasification: | 33 Ciencias tecnológicas 120601 Construcción de algoritmos 120602 Ecuaciones diferenciales 120326 Simulación |
Keywords: | 3D scenarios Camera calibration Distortion model Radial distortion Zoom dependent model |
Issue Date: | 2012 | Project: | Modelización Matemática de Los Procesos de Calibración de Cámaras de Video. | Journal: | Journal of Mathematical Imaging and Vision | Abstract: | We propose new mathematical models to study the variation of lens distortion models when modifying zoom setting in the case of zoom lenses. The new models are based on a polynomial approximation to account for the variation of the radial distortion parameters through the range of zoom lens settings and, on the minimization of a global error energy measuring the distance between sequences of distorted aligned points and straight lines after lens distortion correction. To validate the performance of the method we present experimental results on calibration pattern images and on sport event scenarios using broadcast video cameras. We obtain, experimentally, that using just a second order polynomial approximation of lens distortion parameter zoom variation, the quality of lens distortion correction is as good as the one obtained individually frame by frame using independent lens distortion model for each frame. | URI: | http://hdl.handle.net/10553/46189 | ISSN: | 0924-9907 | DOI: | 10.1007/s10851-012-0339-x | Source: | Journal of Mathematical Imaging and Vision [ISSN 0924-9907], v. 44 (3), p. 480-490 |
Appears in Collections: | Artículos |
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