Speckle average technique for DSPI static deformation measurement

Shuhai Jia; Junwu Zhao

doi:10.1117/12.574848

7 February 2005 Speckle average technique for DSPI static deformation measurement

Shuhai Jia, Junwu Zhao

Proceedings Volume 5636, Holography, Diffractive Optics, and Applications II; (2005) https://doi.org/10.1117/12.574848
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Shuhai Jia and Junwu Zhao "Speckle average technique for DSPI static deformation measurement", Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); https://doi.org/10.1117/12.574848

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