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公开(公告)号：JP5595473B2
公开(公告)日：2014-09-24
申请号：JP2012284424
申请日：2012-12-27
申请人： キヤノン株式会社
CPC分类号： G06T7/0002 , A61B6/4291 , A61B6/484 , G01J9/02 , G01N23/04 , G01N23/20075 , G01N2223/401 , G21K1/06 , G21K2201/06 , G21K2201/067
摘要： An X-ray imaging apparatus and an X-ray imaging method that can acquire a differential phase image or a phase image of a subject by at least a single imaging operation are provided. The X-ray imaging apparatus according to the present invention includes a phase grating 130, an absorption grating 150, a detector 170, and an arithmetic unit 180. The arithmetic unit 180 executes a Fourier transform step of performing Fourier transform for an intensity distribution of a Moiré acquired by the detector, and acquiring a spatial frequency spectrum. Also, the arithmetic unit 180 executes a phase retrieval step of separating a spectrum corresponding to a carrier frequency from a spatial frequency spectrum acquired in the Fourier transform step, performing inverse Fourier transform for the separated spectrum, and acquiring a differential phase image.
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公开(公告)号：JP5197779B2
公开(公告)日：2013-05-15
申请号：JP2011031037
申请日：2011-02-16
申请人： キヤノン株式会社
CPC分类号： A61B5/0073 , A61B5/0035 , A61B5/0095
摘要： A biological information imaging apparatus includes: a light source; an acoustic wave detector that detects an acoustic wave generated from a light absorption material in a living body that has absorbed a part of energy of light irradiated from the light source to the living body, and converts it into a first electric signal; a photodetector that detect optical intensity of a portion of the light irradiated from the light source to the living body and propagating in the living body, and converts it into a second electric signal; and a calculation unit that calculates optical property distribution information on the living body by making use of an analytical result of one of the first electric signal and the second electric signal for analysis of the other electric signal.
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公开(公告)号：JP2012507690A
公开(公告)日：2012-03-29
申请号：JP2011514216
申请日：2009-10-28
申请人： キヤノン株式会社
CPC分类号： G06T7/0002 , A61B6/4291 , A61B6/484 , G01J9/02 , G01N23/04 , G01N23/20075 , G01N2223/401 , G21K1/06 , G21K2201/06 , G21K2201/067
摘要： An X-ray imaging apparatus and an X-ray imaging method that can acquire a differential phase image or a phase image of a subject by at least a single imaging operation are provided. The X-ray imaging apparatus according to the present invention includes a phase grating 130, an absorption grating 150, a detector 170, and an arithmetic unit 180. The arithmetic unit 180 executes a Fourier transform step of performing Fourier transform for an intensity distribution of a Moiré acquired by the detector, and acquiring a spatial frequency spectrum. Also, the arithmetic unit 180 executes a phase retrieval step of separating a spectrum corresponding to a carrier frequency from a spatial frequency spectrum acquired in the Fourier transform step, performing inverse Fourier transform for the separated spectrum, and acquiring a differential phase image.
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公开(公告)号：JP4594273B2
公开(公告)日：2010-12-08
申请号：JP2006128355
申请日：2006-05-02
申请人： キヤノン株式会社
CPC分类号： G11B5/855 , C23C14/042 , C23C14/046 , C23C14/165 , C23C14/345 , C23C14/5873 , C23C14/588 , G11B5/851 , Y10T428/32
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