Engineering Approach of Camera Calibration  Engineering Approach of Camera Calibration

NCUIR > Engineering College > Graduate Institute of Mechanical Engineering > Electronic Thesis & Dissertation > Item 987654321/2055

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/2055

Title:	Engineering Approach of Camera Calibration Engineering Approach of Camera Calibration
Authors:	林友祥;Yu-hsiang Lin
Contributors:	機械工程研究所
Keywords:	camera calibration;CCD;stereo vision;Levenbe
Date:	2001-07-03
Issue Date:	2009-09-21 11:37:20 (UTC+8)
Publisher:	國立中央大學圖書館
Abstract:	Camera calibration is the necessary procedure before utilizing digital cameras (or CCDs). Based on the assumption of pinhole camera model, conventional approach of camera calibration is to solve the extrinsic and intrinsic parameters simultaneously. In general, the whole process is very complicated and not guaranteed to obtain reasonable parameters. To simplify the calibration process and get reliable camera parameters, we use accurate position control to identify the extrinsic parameters while Levenberg-Marquardt method is implemented to optimize the intrinsic parameters. From experimental results, we discuss the reasons of parameters variance for real and imperfect images. To prove the accuracy of calibrated results, camera parameters are used to reconstruct 2D image directly from 3D object. Furthermore, the concept is also extended to stereo vision. It is shown that the calibration of binocular cameras system increases the accuracy of 3D metrology extremely.
Appears in Collections:	[Graduate Institute of Mechanical Engineering] Electronic Thesis & Dissertation

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