Comparison and analysis on the methods of improving the image quality in digital hologram reconstruction

Jiansu Li; Zhao Wang; Jianmin Gao

doi:10.1117/12.906663

28 November 2011 Comparison and analysis on the methods of improving the image quality in digital hologram reconstruction

Jiansu Li, Zhao Wang, Jianmin Gao

Author Affiliations +

Proceedings Volume 8202, 2011 International Conference on Optical Instruments and Technology: Solid State Lighting and Display Technologies, Holography, Speckle Pattern Interferometry, and Micro/Nano Manufacturing and Metrology; 820205 (2011) https://doi.org/10.1117/12.906663
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

Frequency filtering, high pass filtering pro-process method, Laplace differential template, finite impulse response filtering, and wavelet transform have been proposed for eliminating zero-order diffraction in digital hologram reconstruction. The characteristics and limitations of these methods are summed up in this paper after systematically analyzing those. Furthermore, through comparing the quality of reconstructed images with or without a mean filter, it shows that the contrast and resolution have significantly been enhanced with mean filter. Finally, an effective method of improving the quality of reconstructed image, which combines wavelet transform with mean filter, is presented by contrasting and analyzing the experiment results.

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Jiansu Li, Zhao Wang, and Jianmin Gao "Comparison and analysis on the methods of improving the image quality in digital hologram reconstruction", Proc. SPIE 8202, 2011 International Conference on Optical Instruments and Technology: Solid State Lighting and Display Technologies, Holography, Speckle Pattern Interferometry, and Micro/Nano Manufacturing and Metrology, 820205 (28 November 2011); https://doi.org/10.1117/12.906663

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KEYWORDS

3D image reconstruction

Image filtering

Holograms

Optical filters

Image quality

Digital holography

Linear filtering

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