Real-time flow imaging by removing texture pattern artifacts in spectral-domain optical Doppler tomography
Optics Letters, Vol. 31, Issue 20, pp. 3001-3003 (2006)
http://dx.doi.org/10.1364/OL.31.003001
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Abstract
We present a new, simple method to suppress texture pattern artifacts induced by the optical heterogeneity of tissues to improve the performance of flow imaging for real-time phase-resolved optical Doppler tomography. The method performs transverse scanning of the probe beam in the forward and then reverse directions, and it takes average of the spatial phase changes between them to obtain the final velocity image. It relies on the fact that the phase changes between successive axial scans due to the optical heterogeneity of the sample are time independent, while those due to the moving particles are time dependent. We experimentally demonstrate this method by real-time imaging of a flow phantom.
© 2006 Optical Society of America
OCIS Codes
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(170.4500) Medical optics and biotechnology : Optical coherence tomography
ToC Category:
Medical Optics and Biotechnology
History
Original Manuscript: June 22, 2006
Revised Manuscript: July 19, 2006
Manuscript Accepted: July 20, 2006
Published: September 25, 2006
Virtual Issues
Vol. 1, Iss. 11 Virtual Journal for Biomedical Optics
Citation
Ruikang K. Wang and Zhenhe Ma, "Real-time flow imaging by removing texture pattern artifacts in spectral-domain optical Doppler tomography," Opt. Lett. 31, 3001-3003 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-20-3001
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