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Abstract: Images taken with wide-angle and inexpensive medium-angle lenses show substantial distortion, which will cause many computer vision applications to malfunction. Parametric calibration algorithms cannot handle the wide range of possible distortion functions and they require a known image center, expensive equipment, and/or estimation of unneeded parameters. We present a new algorithm to remove distortion. It is similar to the plumb line method but it (a) uses images of spheres rather than lines, ... (Update)
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...pixels, as reference. The other triangulations were normalized so as to have the same global scale and orientation as the reference. See [17] for details. Then a grid of 20 by 20 uniformly spaced points in the input image was warped to stereographic, using the normalized...
...with respect to the projection of the intersection line since the projection preserves the angle. Common projective transformation candidates [10] are perspective (d 0 b = k Delta tanfl) stereographic (d 0 b = k Delta tan( fl 2 ) equidistant (d 0 b = k Delta fl) where d 0 b...
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Nonparametric, Model-Based Radial Lens Distortion Correction.. - Pers, Kovacic (2002) (Correct)
Image Registration and Mosaicing Using a Self-Calibrating.. - Sevket Gumustekin Richard (Correct)
Nonparametric Correction of Distortion - Stevenson, Fleck (1995) (Correct)
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1.1: Robot Aerobics: Four Easy Steps to a More Flexible Calibration - Stevenson, Fleck (1995) (Correct)
0.5: Merging Real and Virtual Environments with Video See-Through.. - Bajura (1997) (Correct)
0.2: Performance Evaluation Of An Active Vision System - von Seelen (1997) (Correct)
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0.2: Duane C. Brown* - Dba Systems Inc (Correct)
0.2: Correcting Distortion of Image by Image Registration - Tamaki, Yamamura, Ohnishi (2002) (Correct)
0.2: Perspective Projection: The Wrong Imaging Model - Margaret Fleck (1995) (Correct)
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2: Robot Aerobics: Four Easy Steps to a More Flexible Calibration - Daniel, Margaret et al. - 1995
BibTeX entry: (Update)
Stevenson, Daniel and Margaret Fleck (1995) "Nonparametric Correction of Distortion," TR 95-07, Comp. Sci., U. of Iowa. http://citeseer.nj.nec.com/stevenson95nonparametric.html More
@misc{ daniel95nonparametric,
author = "S. Daniel and M. Fleck",
title = "Nonparametric Correction of Distortion",
text = "Stevenson, Daniel and Margaret Fleck (1995) Nonparametric Correction of
Distortion, TR 95-07, Comp. Sci., U. of Iowa.",
year = "1995",
url = "citeseer.nj.nec.com/stevenson95nonparametric.html" }
Citations (may not include all citations):219 Primitives for the Manipulation of General Subdivisions and .. (context) - Leonidas, Stolfi - 1985
116 An Efficient and Accurate Camera Calibration Technique for 3.. (context) - Roger - 1986
53 Close-range Camera Calibration (context) - Brown - 1971
35 SelfCalibration of the Intrinsic Parameters of Cameras for A.. (context) - Fenglei, Brady - 1993
29 Accurate Internal Camera Calibration using Rotation, with An.. - Stein - 1995
12 Camera Calibration of a Head-Eye System for Active Vision (context) - Mengxiang - 1994
11 Perspective Projection: the Wrong Imaging Model - Margaret - 1995
10 Camera Calibration Using Multiple Images (context) - Paul, Murray et al. - 1992
9 Constrained Delaunay Triangulation for Multiresolution Surfa.. (context) - Leila, Puppo - 1988
8 Robot Aerobics: Four Easy Steps to a More Flexible Calibrati.. - Daniel, Fleck - 1995
6 Calibration of an Omnidirectional Vision Navigation System U.. (context) - Sung, Ernest et al. - 1989
5 A History of the Photographic Lens (context) - Rudolf - 1989
5 Applied Photographic Optics (context) - Sidney - 1994
4 Modern Lens Design: A Resource Manual (context) - Warren - 1992
3 Nonparametric Correction of Distortion - Daniel, Fleck - 1995
2 The Nonparametric Approach for Camera Calibration (context) - MaoLin, De Ma - 1995
2 Mathematical Association of America (context) - Liang-shin, Numbers - 1994
Documents on the same site (http://www.cs.uwec.edu/faculty/stevenson/cv.html): More
Nonparametric Correction of Distortion - Stevenson, Fleck (1995) (Correct)
Implementation and Extension of a Stereo Vision System - Stevenson (1996) (Correct)
Robot Aerobics: Four Easy Steps to a More Flexible Calibration - Stevenson, Fleck (1995) (Correct)
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