Reduction of speckle noise in digital holography by multiple holograms

Lu Rong; Wen Xiao; Feng Pan

doi:10.1117/12.835558

28 August 2009 Reduction of speckle noise in digital holography by multiple holograms

Lu Rong, Wen Xiao, Feng Pan

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73823T (2009) https://doi.org/10.1117/12.835558
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

In this paper, we introduce and demonstrate a new method of reducing speckle noise by multiply holograms. It can utilize both the phase and amplitude information of the object wave-front. In the superposition process, the phase surfaces with high signal to noise ratio in the different phase images have been appropriately weighted according to reconstructed intensity image. We show a theoretical justification of the procedure and experimentally-obtained results of a USAF-1951 resolution test target, both of which demonstrate that the proposed method could reduce the speckle noise effectively, and improve the resolution of reconstructed image.

Citation Download Citation

Lu Rong, Wen Xiao, and Feng Pan "Reduction of speckle noise in digital holography by multiple holograms", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73823T (28 August 2009); https://doi.org/10.1117/12.835558

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