scholarly journals Parameter-free radial distortion correction with centre of distortion estimation

2005 ◽  
Author(s):  
R.I. Hartley ◽  
Sing Bing Kang
Keyword(s):  
Distortion Correction ◽  
Radial Distortion ◽  
Distortion Estimation

RATIONAL RADIAL DISTORTION MODELS OF CAMERA LENSES WITH ANALYTICAL SOLUTION FOR DISTORTION CORRECTION

2004 ◽  
Vol 01 (02) ◽  
pp. 135-147 ◽  
Author(s):  
LILI MA ◽  
YANGQUAN CHEN ◽  
KEVIN L. MOORE
Keyword(s):  
Analytical Solution ◽  
Polynomial Approximation ◽  
Distortion Correction ◽  
Camera Model ◽  
Distortion Model ◽  
Radial Distortion ◽  
New Class ◽  
Comparable Accuracy ◽  
The Common ◽  
Distortion Parameters

The common approach to radial distortion is by the means of polynomial approximation, which introduces distortion-specific parameters into the camera model and requires estimation of these distortion parameters. The task of estimating radial distortion is to find a radial distortion model that allows easy undistortion as well as satisfactory accuracy. This paper presents a new class of rational radial distortion models with easy analytical undistortion formulae. Experimental results are presented to show that with this class of rational radial distortion models, satisfactory and comparable accuracy can be achieved.

Camera lens radial distortion correction using two-view projective invariants

2011 ◽  
Vol 36 (24) ◽  
pp. 4734 ◽  
Author(s):  
Xin Du ◽  
Hongdong Li ◽  
Yunfang Zhu
Keyword(s):  
Distortion Correction ◽  
Projective Invariants ◽  
Camera Lens ◽  
Radial Distortion

Radial Distortion Correction of Fish-Eye Lens Using Straight Lines

2013 ◽  
Vol 432 ◽  
pp. 364-367
Author(s):  
Jong Eun Ha
Keyword(s):  
Distortion Correction ◽  
Eye Lens ◽  
Wide Field ◽  
Lens Model ◽  
Radial Distortion ◽  
Straight Line ◽  
Wide Field Of View ◽  
Planar Pattern ◽  
Straight Lines ◽  
Fish Eye

Fish-eye lens is used in various applications because it can give wide field of view. But, it deviates from the conventional pin-hole camera assumption. It has large radial distortion compared to the conventional lens. In this paper, we present an algorithm for radial distortion correction of fish-eye lens using the property of straight line. First, we estimate the center of radial distortion using the algorithm of Hartely and Kang [4]. We adopt fish-eye lens model of Devernay and Faugeras [5] and estimate the parameter thorough searching. We use planar pattern with chessboard and generate undistorted points by given parameter value. We evaluate the correctness of the parameter by checking the distance of a point to the fitted line. In experiments, we compare proposed algorithm with Wang et al. [6]. Proposed algorithm gives more stable result with less distortion error.

A Simple and Efficient Method for Radial Distortion Estimation by Relative Orientation

2017 ◽  
Vol 55 (12) ◽  
pp. 6840-6848
Author(s):  
Yansong Duan ◽  
Xiao Ling ◽  
Yongjun Zhang ◽  
Zuxun Zhang ◽  
Xinyi Liu ◽  
...  
Keyword(s):  
Efficient Method ◽  
Relative Orientation ◽  
Radial Distortion ◽  
Distortion Estimation
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