Using the Hilbert transform for the investigation of structurally heterogeneous packaging materials

P. A. Riabyi; V. M. Tkachuk

doi:10.1117/12.3009187

5 January 2024 Using the Hilbert transform for the investigation of structurally heterogeneous packaging materials

P. A. Riabyi, V. M. Tkachuk

Author Affiliations +

Proceedings Volume 12938, Sixteenth International Conference on Correlation Optics; 129380D (2024) https://doi.org/10.1117/12.3009187
Event: International Conference Correlation Optics (COR 2023), 2023, Chernivtsi, Ukraine

Abstract

Paper, matte and glossy materials (packaging materials) are one of the most common printing materials, particularly among those used in packaging. Glossy materials are characterized by height inhomogeneity of about 0.6 μm, which is comparable with the wavelength of the He-Ne laser that forms the speckle field. Obtaining amplitude-phase information for research of structurally heterogeneous packaging materials is an urgent task today. This study considers a model for analyzing the behavior of fluorescent carbon particles in a speckle field obtained from a glossy material. The application of the Hilbert transformation makes it possible to recover information about the phase distribution of the investigated optical field. To restore the phase information, the localization of carbon nanoparticles at the minimum intensity points with singularities and without singularities was used, with the addition of lost information to restore the phase map using the Hilbert transformation. Determining the location of carbon nanoparticles by fixing their luminescence significantly improves the overall picture of the phase restoration of the investigated object due to the high accuracy of reproducing the information about the localization of points of minimum intensity with singularities.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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P. A. Riabyi and V. M. Tkachuk "Using the Hilbert transform for the investigation of structurally heterogeneous packaging materials", Proc. SPIE 12938, Sixteenth International Conference on Correlation Optics, 129380D (5 January 2024); https://doi.org/10.1117/12.3009187

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