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Proceedings Paper

ESPI stripe-image processing in controlling welding stress and deformation
Author(s): Yong Yang; Yushu Liu; Shuangzi Sun; Xinchao Gu
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Paper Abstract

In the industrial process of welding, there are kinds of stress that deform the weidment and reduce the precision of welding. Through sampling and processing the ESPI stripe-images, which generate from the process of welding, finally the skeletons of these images can be extracted. Since these skeletons represent the movement of dynamic displacement fields, the ultima aim of processing ESPI stripe-image is to control the process of welding, to debase the degree of distortion for the weldment, consequently to heighten the precision of welding. On the basis of analyzing the characteristic of ESPI stripe-images, this paper bring forward the thought of integrated design, thin these images and extract its skeletons after gray transform, histogram equalization, filtering noise and binarization.

Paper Details

Date Published: 30 August 2002
PDF: 5 pages
Proc. SPIE 4925, Electronic Imaging and Multimedia Technology III, (30 August 2002); doi: 10.1117/12.481635
Show Author Affiliations
Yong Yang, Beijing Institute of Technology and Changchun Institute of Optics and Fine Mechanics (China)
Yushu Liu, Beijing Institute of Technology (China)
Shuangzi Sun, Changchun Institute of Optics and Fine Mechanics (China)
Xinchao Gu, Changchun Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 4925:
Electronic Imaging and Multimedia Technology III
LiWei Zhou; Chung-Sheng Li; Yoshiji Suzuki, Editor(s)

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