NDLI: A method of analyzing image distortion based on conjugate nodal plane

Content Provider	IEEE Xplore Digital Library
Author	Zhang Chun-Ming Yong-Chun, X.
Copyright Year	2012
Description	Author affiliation: Beijing Inst. of Control & Eng., Beijing, China (Zhang Chun-Ming; Yong-Chun, X.)
Abstract	The imaging model of an optical camera without image aberration can be equivalently depicted by its conjugate nodal plane model. A pinhole camera model itself neglects aberration of corresponding equivalent model, and also fails to represent shift error of flat glass, tilt error of optical axis as well as image aberration of an actual optical system, all of these four factors give rise to image distortion. Based on this, utilizing the property of conjugate nodal plane, an geometry model of image distortion is presented. This model, which fits for pinhole cameras with chromatic aberration corrected, can analyze symmetric and asymmetric image distortion. The simulation of an actual optical system indicates that the relative radical distortion and relevant angle error both calculated by this model appears in the range of rational design parameters. In this model, four unknown parameters needed to be recognized are principal relevant parameters, tilt angle of optical axis and axial spherical aberration of flat glass. Theoretically, this geometric model can be used to correct image distortion, aiming at better precision of calibration of image distortion.
Sponsorship	Control Syst. Soc.
Starting Page	3690
Ending Page	3695
File Size	394707
Page Count	6
File Format	PDF
ISBN	9781467325813
ISSN	21612927
e-ISBN	9789881563811
DOI	10.3788/AOS201232.1108001
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Chinese Assoc of Automati
Subject Keyword	Image Distortion Optical distortion Glass Optical imaging Electronic mail Axial Spherical Aberration Conjugate Principle Plane Space technology Conjugate Nodal Plane Cameras Chromatic Aberration Adaptive optics A Pinhole Camera
Content Type	Text
Resource Type	Article

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