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Title:
DIGITAL HOLOGRAPHY DEVICE AND IMAGE GENERATION METHOD USING DIGITAL HOLOGRAPHY
Document Type and Number:
WIPO Patent Application WO/2012/114947
Kind Code:
A1
Abstract:
A digital holography device (1) capable of measuring the subject with a high degree of accuracy, and correcting variations in intensity by accurately removing zero-order diffracted light, provided with: a hologram generation unit (26) that generates a first hologram and a second hologram, which are generated by extracting components having the same degree of phase shift from a polarizer array hologram recorded on an image capturing element (7) with a polarizer array (6) mounted thereupon; a dividing unit (3) that divides the first hologram into a plurality of first regions, and divides the second hologram into a plurality of second regions; a comparison unit (4) that compares the first average value of the intensity in a first region of the first hologram with the second average value of the intensity in the second region of the second hologram corresponding to the first region; and a correction unit (5) that, when the first average value and second average value differ, corrects at least either the first average value or second average value so that the first average value and second average value are equal.

Inventors:
AWATSUJI YASUHIRO
XIA PENG
TAHARA TATSUKI
Application Number:
PCT/JP2012/053436
Publication Date:
August 30, 2012
Filing Date:
February 14, 2012
Export Citation:
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Assignee:
NAT UNIV CORP KYOTO INST TECH (JP)
AWATSUJI YASUHIRO
XIA PENG
TAHARA TATSUKI
International Classes:
G03H1/22; G01B11/24
Domestic Patent References:
WO2009066771A12009-05-28
WO2010092739A12010-08-19
Foreign References:
JP2005283683A2005-10-13
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation Hara [Kenzo] international patent firm (JP)
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Claims: