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Title:
OPTICAL TOMOGRAPHIC IMAGING METHOD AND OPTICAL TOMOGRAPHIC IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2010188114
Kind Code:
A
Abstract:

To provide an optical tomographic imaging method or the like for quickly obtain an OCT image with little dispersion in sensitivity, resolution, or the like while image splicing is facilitated.

The optical tomographic imaging method of picking up a tomographic image of an object to be inspected includes: scanning a predetermined region of the object with spots of a plurality of measurement lights in the same direction so as to irradiate different positions of the object with different spots, detecting interference signals formed by the plurality of return lights of the measurement lights and a plurality of corresponding reference lights reflected by a reference mirror, and processing the signals by executing an arithmetic process on the detected interference signals based on a displacement amount between the different spot positions using interference signals corresponding to at least two of the detected spots out of the respective interference signals so as to improve the signal/noise ratio, wherein the region to be scanned with the spots of the measurement lights of the plurality of lights of a scanning optically system in the same direction, has a size smaller than the sum of sizes of the spots in a direction perpendicular to the scanning direction.

COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
YUASA TAKASHI
SUGITA MITSUO
Application Number:
JP2009124135A
Publication Date:
September 02, 2010
Filing Date:
May 22, 2009
Export Citation:
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Assignee:
CANON KK
International Classes:
A61B3/10; A61B3/12; A61B10/00; G01B11/24; G01N21/17
Domestic Patent References:
JP2004502957A2004-01-29
JP2008520992A2008-06-19
JPH06511312A1994-12-15
JPH08252256A1996-10-01
Attorney, Agent or Firm:
長尾 達也