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http://dx.doi.org/10.13067/JKIECS.2013.8.11.1923

A Distortion Correction Method of Wide-Angle Camera Images through the Estimation and Validation of a Camera Model  

Kim, Kyeong-Im (전남대학교 디지털컨버전스협동과정)
Han, Soon-Hee (전남대학교 문화콘텐츠학부)
Park, Jeong-Seon (전남대학교 문화콘텐츠학부)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.8, no.12, 2013 , pp. 1923-1932 More about this Journal
Abstract
In order to solve the problem of severely distorted images from a wide-angle camera, we propose a calibration method which corrects a radial distortion in wide-angle images by estimation and validation of camera model. First, we estimate a camera model consisting of intrinsic and extrinsic parameters from calibration patterns, where intrinsic parameters are the focal length, the principal point and so on, and extrinsic parameters are the relative position and orientation of calibration pattern from a camera. Next we validate the estimated camera model by re-extracting corner points by inversing the model to images. Finally we correct the distortion of the image using the validated camera model. We confirm that the proposed method can correct the distortion more than 80% by the calibration experiments using the lattice shaped pattern images captured from a general web camera and a wide-angle camera.
Keywords
Camera Model; Wide-Angle Camera; Distortion Correction; Radial Distortion;
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Times Cited By KSCI : 5  (Citation Analysis)
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