Speckle reduction in optical coherence tomography by strain compounding
Optics Letters, Vol. 35, Issue 14, pp. 2445-2447 (2010)
http://dx.doi.org/10.1364/OL.35.002445
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Abstract
We present a speckle reduction technique for optical coherence tomography based on strain compounding. Decorrelation is introduced between B-scans by altering the sample’s strain. A theoretical description of the technique, based on a transfer-function formalism, and experimental results on silicone phantoms are presented. Nearly complete decorrelation between successive B-scan speckle patterns was observed for a variation in strain of 0.045. Strain compounding by averaging nine B-scans, with 0.003 strain increments between them, resulted in a 1.5-fold reduction in speckle contrast ratio.
© 2010 Optical Society of America
OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.4500) Imaging systems : Optical coherence tomography
(170.3880) Medical optics and biotechnology : Medical and biological imaging
ToC Category:
Imaging Systems
History
Original Manuscript: April 12, 2010
Revised Manuscript: June 9, 2010
Manuscript Accepted: June 14, 2010
Published: July 13, 2010
Virtual Issues
Vol. 5, Iss. 12 Virtual Journal for Biomedical Optics
Citation
Brendan F. Kennedy, Timothy R. Hillman, Andrea Curatolo, and David D. Sampson, "Speckle reduction in optical coherence tomography by strain compounding," Opt. Lett. 35, 2445-2447 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-14-2445
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