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Proceedings Paper

Speckle average technique for DSPI static deformation measurement
Author(s): Shuhai Jia; Junwu Zhao
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Paper Abstract

A novel speckle averaging technique for DSPI static deformation measurement is proposed in this paper. This method combines the speckle averaging and phase-shifting technique. A speckle averaging mechanism is designed and fabricated. Its stability and repeatability is high, so it can meet the requirement of the DSPI static deformation measurement. Using this technique, the quality of result of DSPI static deformation measurement is improved greatly. The algorithm of speckle averaging is described in detail. The comparison of results of different speckle averaging times is presented in this paper.

Paper Details

Date Published: 7 February 2005
PDF: 5 pages
Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); doi: 10.1117/12.574848
Show Author Affiliations
Shuhai Jia, Xi’an Jiaotong Univ. (China)
Junwu Zhao, Xi’an Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 5636:
Holography, Diffractive Optics, and Applications II
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu; Byoungho Lee, Editor(s)

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