Automatic spatial filtering to obtain the virtual image term in digital holographic microscopy
Applied Optics, Vol. 49, Issue 2, pp. 189-195 (2010)
http://dx.doi.org/10.1364/AO.49.000189
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Abstract
The main factor that limits the quality of an image reconstructed by the process of spatial filtering in digital holographic microscopy is discussed. A spatial filter determined by the distribution of the spectrum of the virtual image is designed automatically for real time dynamic analysis of a micro-object, and an optimal reconstructed phase image can be obtained. An experiment of a holographic image with an onion specimen is presented to prove the validity of this approach. Comparing the numerical reconstruction of the hologram by employing different spatial filters with the automatic spatial filtering shows the superiority of the automatic spatial filtering method, and it is suitable for dynamic and automatic analysis.
© 2010 Optical Society of America
OCIS Codes
(070.6110) Fourier optics and signal processing : Spatial filtering
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(090.1995) Holography : Digital holography
ToC Category:
Holography
History
Original Manuscript: September 23, 2009
Revised Manuscript: November 8, 2009
Manuscript Accepted: November 30, 2009
Published: January 7, 2010
Virtual Issues
Vol. 5, Iss. 3 Virtual Journal for Biomedical Optics
Citation
Jiawen Weng, Jingang Zhong, and Cuiying Hu, "Automatic spatial filtering to obtain the virtual image term in digital holographic microscopy," Appl. Opt. 49, 189-195 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-2-189
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