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Proceedings Paper

Distance inspection for robot vision and 3D imaging using defocusing pixel dither
Author(s): Xianhe Zhang; Guoping Zhang; Zhongru Zhu; Yanyan Chen
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Paper Abstract

The object distance is the important parameter for image recognition and robot 3D view. This paper presents a novel method of pixel dither passive ranging. We derived the mathematical model of ranging, obtains the ranging mirror equation using lens equation, and analyzed the effect of light spectrum wide and the limit for demodulation. It shows that this method has the performances of high precision, high sensitivity and good anti-interference. In the process of ranging, it is not necessary to require the detector plane on the imaging plane exactly.

Paper Details

Date Published: 10 October 2000
PDF: 4 pages
Proc. SPIE 4222, Process Control and Inspection for Industry, (10 October 2000); doi: 10.1117/12.403907
Show Author Affiliations
Xianhe Zhang, Huangshi College of Technology (China)
Guoping Zhang, Central China Normal Univ. (China)
Zhongru Zhu, Central China Normal Univ. (China)
Yanyan Chen, Zhejiang Normal Univ. (China)


Published in SPIE Proceedings Vol. 4222:
Process Control and Inspection for Industry
Shulian Zhang; Wei Gao, Editor(s)

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