NDLI: A calibration methods for Vision measuring system with large view field

Content Provider	IEEE Xplore Digital Library
Author	Feng Guanming Zou Huadong Zhu Liangrong Wu Nianxiang
Copyright Year	2011
Description	Author affiliation: Department of electronics engineering, Zhejiang Industry Polytechnic College, SHAOXIN, China (Feng Guanming; Zou Huadong) \|\| Department of electronic engineering, Anhui Vocational College of Defense Technology, Lu An, China (Zhu Liangrong; Wu Nianxiang)
Abstract	Images with severe geometrical distortions, which are induced by camera lens and position, must be corrected before extracting quantitative measurements. This paper presents a simple and efficient method of calibrating the intrinsic camera parameters to correct the non-linear distortion. We fix the aperture setting and perform the camera calibration. A plate with many circles is used as the calibration object. These circles are used as the calibration patterns. The centroids of the circles in the image are gotten as the image coordinates of the calibration data. The calibration parameter of measurement system is calculated according to the calibrated points in the center part. Our experiments show that the proposed method can provide accurate intrinsic camera parameters and correct the image distortion.
Starting Page	1377
Ending Page	1380
File Size	382237
Page Count	4
File Format	PDF
ISBN	9781424493043
e-ISBN	9781424493067
DOI	10.1109/CISP.2011.6100394
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Accuracy camera parameter distortion correction Machine vision Nonlinear distortion image segmentation non-linear calibration Optical distortion Calibration Distortion measurement Lenses machine vision
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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