• Chinese Optics Letters
  • Vol. 7, Issue 9, 788 (2009)
Mengwei Li1, Chen Tang2, Gao Wang1, Hongwei Ren2, Ke Tang2, and Tianyu Ye2
Author Affiliations
  • 1Key Laboratory of Instrumentation Science &
  • 2Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China
  • show less
    DOI: 10.3788/COL20090709.0788 Cite this Article Set citation alerts
    Mengwei Li, Chen Tang, Gao Wang, Hongwei Ren, Ke Tang, Tianyu Ye. A novel method to obtain electronic speckle pattern interferometry fringe patterns with high contrast[J]. Chinese Optics Letters, 2009, 7(9): 788 Copy Citation Text show less

    Abstract

    Traditional speckle fringe patterns of electronic speckle pattern interferometry (ESPI) are obtained by adding, subtracting, or multiplying the speckle patterns recorded before and after the deformation. However, these speckle fringe patterns are of limited visibility, especially for addition and multiplication fringe patterns. We propose a novel method to obtain speckle fringe patterns of ESPI from undeformed and deformed speckle patterns. The fringe pattern generated by our method is of high contrast and has better quality than subtraction fringe. The new method is simple and does not require more computational effort. The proposed method is tested on the experimentally obtained undeformed and deformed speckle patterns. The experimental results illustrate the performance of this approach.
    Mengwei Li, Chen Tang, Gao Wang, Hongwei Ren, Ke Tang, Tianyu Ye. A novel method to obtain electronic speckle pattern interferometry fringe patterns with high contrast[J]. Chinese Optics Letters, 2009, 7(9): 788
    Download Citation