Raster scanning and averaging for reducing the influence of speckles in optical coherence tomography

Journal Article · Sat Jun 30 00:00:00 EDT 2012 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2012V042N06ABEH014883· OSTI ID:22043941

Proskurin, S G ^[1]

---

1. Tambov State Technical University, Tambov (Russian Federation)

The application of small-angle raster scanning and averaging in the sample arm of the Michelson interferometer in optical coherence tomography (OCT) is described. Raster averaging is used to increase the signal-to-noise ratio and to reduce the speckle noise of the 2D OCT image in diagnostics of surface layers of human skin and subcutaneous blood vessels in vivo. The method allows using low-coherence source of low-power radiation and increasing the depth of human skin coherent probing up to 1.5 - 1.8 mm. The reduction of speckle noise in the obtained OCT image for the first time allowed visualisation of subcutaneous blood vessels at the entire depth of their localisation. (biophotonics)

• OSTI ID: 22043941
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 42, Issue 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BIOPHYSICS
BLOOD VESSELS
COHERENT SCATTERING
IMAGES
IN VIVO
LAYERS
MICHELSON INTERFEROMETER
NOISE
SIGNAL-TO-NOISE RATIO
SKIN
SURFACES
TOMOGRAPHY