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Mohammad Abolhassani

Mohammad Abolhassani

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0001-6112-0709
Education: PhD.
ScopusId: 16174353100
Faculty: Science
Address: Arak University
Phone:

Research

Title
Speckle noise reduction by division and digital processing of a hologram
Type
JournalPaper
Keywords
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Year
2012
Journal Optik
DOI
Researchers Mohammad Abolhassani ، Y Rostami

Abstract

One of the common problems in classical and digital holography is presence of speckle in reconstructed images. Some methods have been predicted for speckle reduction. Speckle has a statistical distribution in size and intensity. Thus complete elimination of them is impossible. But, one can use this statistical characters to reduce its effects. In this paper a method is proposed for reduction of speckle effect by recording a hologram and then dividing it to several sub-holograms. Each sub-hologram is used to produce an image. Final image is constructed by superposition of these images. The final image has a smaller amount of speckle noise. Experimental results verify effectiveness of this technique.