The Analysis and Research on Digital Holography Signal Based on Wavelet Theory

Abstract:

When introduce the wavelet theory to filter the hologram and the reconstructed image in the digital holography, the noise of the reconstructed image is greatly reduced. In the off-axis digital holography, the zero-order wave is decreased dramatically when after a wavelet filter, at the same time, the speckle noise is also reduced, and it turns out that the resolution of the reconstruction image is improved greatly. The system launches the research thoroughly on the three-dimensional body digital holographic technology, from the theory to the application, from the simulation to the experiment, and has elaborated and analyzed each characteristic of three-dimensional body digital holographic technology. It proposes many kinds of improved effective method of three-dimensional body digital holographic restructuring information, and finally has effectively explored the three-dimensional body digital holographic technology application through the experiment.

• Periodical: Advanced Materials Research (Volume 216)
• Pages: 414-418
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.216.414
• Online since: March 2011
• Authors: Yu Tian Wang, Dong Sheng Wang, Wei Wei Pan
• Keywords: Digital Holography, Laser Speckle, Twin Image, Wavelet Transform (WT)

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