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1. US20130242313 - SCANNING METHODS AND APPARATUS

Office United States of America
Application Number 13883416
Application Date 04.11.2011
Publication Number 20130242313
Publication Date 19.09.2013
Publication Kind A1
IPC
G01N 21/17
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
CPC
G01N 21/17
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
Applicants Tomlins Peter
Adegun Oluyori Kutulola
Fortune Farida
Inventors Tomlins Peter
Adegun Oluyori Kutulola
Fortune Farida
Priority Data 201018743 05.11.2010 GB
Title
(EN) SCANNING METHODS AND APPARATUS
Abstract
(EN)

There is provided a method of identifying a region of interest in sample. The method comprises obtaining one or more optical coherence tomography (OCT) axial scans at one or more locations over the sample surface; for each axial scan, determining an integrated total of OCT intensity over the depth of the scan, and determining an attenuation depth into the sample at which a predetermined fraction of the integrated total is reached; and determining the from the one or more attenuation depths a region of interest in the sample. Generally, the method does not rely the accuracy (or inaccuracy) of any particular scientific model of scattering and attenuation. It is therefore robust and can be employed across a wide variety of samples, including non-biological ones.

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