Digital Holographic Microscopy enables single shot capture of Quantitative Phase images. In many cases the object under investigation is moving rapidly forcing a low exposure time. The result of this is a strong shot noise signal in the hologram plane which in turn results in a strong complex noise term in the reconstruction plane. The phase of the reconstructed image can be significantly effected with a speckle like noise which prevents efficient unwrapping. In this paper we demonstrate the application of Windowed Fourier Transform Filtering in order to reduce this noise in the phase image. The algorithm is implemented on a GPU and applied to images obtained from a commercial Digital Holographic Microscope.

© 2012 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription