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Title:
METHOD AND APPARATUS FOR POLARIZATION IMAGING
Document Type and Number:
WIPO Patent Application WO/2012/002207
Kind Code:
A1
Abstract:
Disclosed is a polarization imaging apparatus (1) which is capable of acquiring the detailed three-dimensional information and the polarization distribution of a subject by one image pickup, the polarization imaging apparatus being provided with a laser light source (11) and an imaging element (12). An object beam and a reference beam which are incident upon the imaging element (12) include a first direction polarization and a second direction polarization different from the first direction. The imaging element (12) images at one time the interference pattern which is made up of a first interference image formed by interference between the reference beam having the first direction polarization and a first phase and the object beam; a second interference image formed by interference between the reference beam having the first direction polarization and a second phase and the object beam; a third interference image formed by interference between the reference beam having the second direction polarization and the first phase and the object beam; and a fourth interference image formed by interference between the reference beam having the second direction polarization and the second phase and the object beam. The polarization imaging apparatus (1) includes a reproducing section (24) for providing, from these interference images, a reproduced image having a first direction polarization component of the subject (18) and a reproduced image having a second direction polarization component; and a polarization image computing section (25) for determining a polarization image on the basis of these reproduced images.

Inventors:
AWATSUJI YASUHIRO
TAHARA TATSUKI
Application Number:
PCT/JP2011/064228
Publication Date:
January 05, 2012
Filing Date:
June 22, 2011
Export Citation:
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Assignee:
NAT UNIV CORP KYOTO INST TECH (JP)
AWATSUJI YASUHIRO
TAHARA TATSUKI
International Classes:
G01J4/04
Domestic Patent References:
WO2010092739A12010-08-19
Foreign References:
JP2005283683A2005-10-13
JP2008122565A2008-05-29
JP2004538451A2004-12-24
JP2007033187A2007-02-08
Other References:
D.BEGHUIN ET AL.: "Single acquisition polarisation imaging with digital holography", ELECTRONICS LETTERS, vol. 35, no. 23, 11 November 1999 (1999-11-11), pages 2053 - 2055
TAKASHI KAKUE ET AL.: "Korocho Shift Color Digital Holography", DAI 4 KAI SHIN GAZO SYSTEM JOHO PHOTONICS KENKYU TORONKAI ABSTRACT, 29 June 2010 (2010-06-29), pages 2
TATSUKI TAHARA ET AL.: "Heiretsu Nidankai Iso Shift Digital Holography System", DAI 4 KAI SHIN GAZO SYSTEM JOHO PHOTONICS KENKYU TORONKAI ABSTRACT, 29 June 2010 (2010-06-29), pages 2
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
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Claims: