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Open AccessArticle
Interpolation-Filtering Method for Image Improvement in Digital Holography
by
Alexander V. Kozlov
Alexander V. Kozlov ,
Pavel A. Cheremkhin
Pavel A. Cheremkhin *,
Andrey S. Svistunov
Andrey S. Svistunov ,
Vladislav G. Rodin
Vladislav G. Rodin ,
Rostislav S. Starikov
Rostislav S. Starikov and
Nikolay N. Evtikhiev
Nikolay N. Evtikhiev
Laser Physics Department, Institute for Laser and Plasma Technologies, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe Shosse 31, 115409 Moscow, Russia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2024, 14(19), 8790; https://doi.org/10.3390/app14198790 (registering DOI)
Submission received: 5 September 2024
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Revised: 26 September 2024
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Accepted: 28 September 2024
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Published: 29 September 2024
Abstract
Digital holography is actively used for the characterization of objects and 3D-scenes, tracking changes in medium parameters, 3D shape reconstruction, detection of micro-object positions, etc. To obtain high-quality images of objects, it is often necessary to register a set of holograms or to select a noise suppression method for specific experimental conditions. In this paper, we propose a method to improve filtering in digital holography. The method requires a single hologram only. It utilizes interpolation upscaling of the reconstructed image size, filtering (e.g., median, BM3D, or NLM), and interpolation to the original image size. The method is validated on computer-generated and experimentally registered digital holograms. Interpolation methods coefficients and filter parameters were analyzed. The quality is improved in comparison with digital image filtering up to 1.4 times in speckle contrast on the registered holograms and up to 17% and 29% in SSIM and NSTD values on the computer-generated holograms. The proposed method is convenient in practice since its realization requires small changes of standard filters, improving the quality of the reconstructed image.
Share and Cite
MDPI and ACS Style
Kozlov, A.V.; Cheremkhin, P.A.; Svistunov, A.S.; Rodin, V.G.; Starikov, R.S.; Evtikhiev, N.N.
Interpolation-Filtering Method for Image Improvement in Digital Holography. Appl. Sci. 2024, 14, 8790.
https://doi.org/10.3390/app14198790
AMA Style
Kozlov AV, Cheremkhin PA, Svistunov AS, Rodin VG, Starikov RS, Evtikhiev NN.
Interpolation-Filtering Method for Image Improvement in Digital Holography. Applied Sciences. 2024; 14(19):8790.
https://doi.org/10.3390/app14198790
Chicago/Turabian Style
Kozlov, Alexander V., Pavel A. Cheremkhin, Andrey S. Svistunov, Vladislav G. Rodin, Rostislav S. Starikov, and Nikolay N. Evtikhiev.
2024. "Interpolation-Filtering Method for Image Improvement in Digital Holography" Applied Sciences 14, no. 19: 8790.
https://doi.org/10.3390/app14198790
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