Multiple-Cardiac-Cycle Noise Reduction In Dynamic Optical Coherence Tomography Of The Embryonic Heart And Vasculature
Sandeep Bhat, Irina V. Larina, Kirill V. Larin,
Mary E. Dickinson, Michael Liebling
in Optics
Letters, Vol. 34, Issue 23, pp. 3704-3706.
in Virtual Journal of Biomedical Optics, Vol. 5, Issue 1.
Recent progress in optical coherence tomography (OCT) allows imaging dynamic structures and fluid flow within scattering tissue, such as the beating heart and blood flow in mouse embryos. Accurate representation and analysis of these dynamic behaviors require reducing the noise of the acquired data. Although noise can be reduced by averaging multiple neighboring pixels in space or time, such operations reduce the effective spatial or temporal resolution that can be achieved. We have developed a computational postprocessing technique to restore image sequences of cyclically moving structures that preserves frame rate and spatial resolution. The signal-to-noise ratio (SNR) is improved by combining images from multiple cycles that have been synchronized with a temporally elastic registration procedure. Here we show how this technique can be applied to OCT images of the circulatory system in cultured mouse embryos. Our technique significantly improves the SNR while preserving temporal and spatial resolution.
@article{bhat.larina.ea:0901,
author = {Bhat, S. and Larina, I.V and Larin, K.V
and Dickinson, M.E and Liebling, M.},
journal = {Optics Letters, Vol. 34, Issue 23, pp. 3704-3706},
title = {Multiple-cardiac-cycle noise reduction in dynamic optical
coherence tomography of the embryonic heart and vasculature},
language = {EN},
keywords = {Noise in imaging systems, Speckle, Optical coherence
tomography, Coherence tomography },
year = "2009",
date-added = {2009-11-20 14:33:51 -0800},
date-modified = {2009-11-20 14:33:51 -0800},
doi = {doi:10.1364/OL.34.003704},
URL = {http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-34-23-3704},
}
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