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Proceedings Article

3D information acquired by the correlation of projected fringe patterns

[+] Author Affiliations
Xiaoyuan He

Southeast Univ. (China)

Ming Jiang

Southeast Univ. (China) and Univ. of Science and Technology of Suzhou (China)

Proc. SPIE 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, 257 (June 03, 2005); doi:10.1117/12.621525
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From Conference Volume 5852

  • Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics
  • Chenggen Quan; Fook Siong Chau; Anand Asundi; Brian Stephen Wong; Chwee Teck Lim
  • Sevilla, Spain | May 09, 2005

abstract

This paper presents a new method that acquires the height information automatically in projected fringe patterns for 3D profile. The principle is to project the gratings on reference plane and object surface to be measured respectively, and then record them by a CCD camera. Through comparing these two images with digital image correlation method, the offset of the fringe that modulated by the object surface can be obtained. Further the 3D profile or deformation will be inferred. In this new method, an important characteristic is that the principle and processing are only need one fringe pattern on object surface, so it can be well used in real time and dynamic measurement. Another advantage is no need of the complex unwrapping process. At last, this paper shows the experiment results and compared them with phase shifting method.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Xiaoyuan He and Ming Jiang
"3D information acquired by the correlation of projected fringe patterns", Proc. SPIE 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, 257 (June 03, 2005); doi:10.1117/12.621525; http://dx.doi.org/10.1117/12.621525


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