Distortion compensation in large-FOV CCD optical measurement system

Yun Zhang; Rensheng Xiong

doi:10.1117/12.318407

10 August 1998 Distortion compensation in large-FOV CCD optical measurement system

Yun Zhang, Rensheng Xiong

Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998) https://doi.org/10.1117/12.318407
Event: Photonics China '98, 1998, Beijing, China

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.

Citation Download Citation

Yun Zhang and Rensheng Xiong "Distortion compensation in large-FOV CCD optical measurement system", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318407

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