• Chinese Journal of Lasers
  • Vol. 33, Issue 11, 1477 (2006)
[in Chinese]1、2、* and [in Chinese]1
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  • 1[in Chinese]
  • 2[in Chinese]
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    [in Chinese], [in Chinese]. Femtosecond Laser Speckle Cross-Correlation Technique[J]. Chinese Journal of Lasers, 2006, 33(11): 1477 Copy Citation Text show less

    Abstract

    Displacement of the scattering media from speckle information can be obtained. So a novel femtosecond laser speckle technique was proposed. For measuring the displacement of a scattering object by using two images which are taken before and after the object moved. Since the two images are recorded by a charge coupled device (CCD) camera and stored on separate frames in computer, it is possible to use a cross-correlation algorithm to determine the displacement field in real-time. In experiment, displacement of the scattering media is in agreement with the result obtained by cross-correlation algorithm. It is shown that femtosecond laser speckle cross-correlation technique should be a useful for measuring the movement of a scattering object under femtosecond laser illumination.
    [in Chinese], [in Chinese]. Femtosecond Laser Speckle Cross-Correlation Technique[J]. Chinese Journal of Lasers, 2006, 33(11): 1477
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