• Contrast of laser speckle images using some modulated apertures

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Modulated apertures; laser speckle contrast; image processing

    • Abstract


      Using the same diffuser, linear, quadratic and Hamming apertures can form static speckle images. The distribution of the obtained speckle images using modulated apertures is computed by examining the full width at half maximum (FWHM) of the autocorrelation function of the sampled speckle pattern. The FWHM results are compared with the results obtained with open circular aperture. In addition, the effects of the neighbourhood size over the computed speckle contrast are investigated as a function of speckle size.

    • Author Affiliations


      A M HAMED1

      1. Physics Department, Faculty of Science, Ain Shams University, Cairo, Egypt
    • Dates

  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.