Astigmatism compensation in digital holographic microscopy using complex-amplitude correlation

Tamrin Khairul Fikri, Rahmatullah Bahbibi, Mohamad Samuri Suzani,

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Type :	conference_item
Subject :	T Technology (General)
Main Author :	Tamrin Khairul Fikri, Rahmatullah Bahbibi, Mohamad Samuri Suzani,
Title :	Astigmatism compensation in digital holographic microscopy using complex-amplitude correlation

Year of Publication :

2014

Abstract :

Digital holographic microscopy (DHM) is a promising tool for a three-dimensional imaging of microscopic particles. It offers the possibility of wavefront processing by manipulating amplitude and phase of the recorded digital holograms. With a view to compensate for aberration in the reconstructed particle images, this paper discusses a new approach of aberration compensation based on complex amplitude correlation and the use of a priori information. The approach is applied to holograms of microscopic particles flowing inside a cylindrical micro-channel recorded using an off-axis digital holographic microscope. The approach results in improvements in the image and signal qualities.

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