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Proceedings Paper

Distortion compensation in large-FOV CCD optical measurement system
Author(s): Yun Zhang; Rensheng Xiong
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Paper Abstract

The CCD television and theodolite measuring system, composed by CCD camera and electronic theodolite, is able to measure spatial angles and coordinates of space targets. Optical distortion is a major factor to influence the system accuracy because of the large FOV. This paper introduces the method to compensate optical distortion. By means of establishing mathematical models to compensate the optical distortion, we can promptly correct the error of optical distortion in the course of our practical measurement. The mathematical models have two kinds of expressions, the form of integer power and the form of decimal power. Each has its advantages and disadvantages. After being corrected, the system accuracy of angel measurement is superior to 40 seconds. Compared with its original accuracy. It is improved by 7-8 times.

Paper Details

Date Published: 10 August 1998
PDF: 6 pages
Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); doi: 10.1117/12.318407
Show Author Affiliations
Yun Zhang, Xi'an Institute of Optics and Precision Mechanics (Japan)
Rensheng Xiong, Xi'an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 3558:
Automated Optical Inspection for Industry: Theory, Technology, and Applications II
Shenghua Ye, Editor(s)

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