Contrast of laser speckle images using some modulated apertures
Hamed, Abdallah;
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 an open circular aperture. In addition, the effects of the neighborhood size
over the computed speckle contrast are investigated as a function of speckle size.
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 an open circular aperture. In addition, the effects of the neighborhood size
over the computed speckle contrast are investigated as a function of speckle size.
Other data
| Title | Contrast of laser speckle images using some modulated apertures | Authors | Hamed, Abdallah | Keywords | Modulated apertures;laser speckle contrast;image processing | Issue Date | 19-Jul-2021 | Publisher | Indian Academy of Sciences | Journal | Pramana – J. Phys. | Volume | 95 | DOI | https://doi.org/10.1007/s12043-021-02151-8 |
Attached Files
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| 40 Pramana J Phys 2021.pdf | 1.4 MB | Adobe PDF | Request a copy |
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