Title:
RADIATION PHASE IMAGE-CAPTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/098908
Kind Code:
A1
Abstract:
[Problem] To provide a radiation phase image-capturing device for obtaining a phase-contrast image by using two gratings, wherein a plurality of fringe images for obtaining the phase-contrast image is obtained using a single round of imaging. [Solution] A moiré is generated by the superposition of a second grating with a periodic pattern image from a first grating. An image signal read from a pixel group arranged at a spacing of at least one pixel with respect to a predetermined direction serving as a cross direction other than a direction parallel or perpendicular to the direction of the period of the moiré is obtained on the basis of an image signal of the moiré. With respect to the predetermined direction, the image signals of at least two lines of adjacent pixel groups are used as mutually different fringe image signals to generate an image signal of a single complex pixel and thereby generate a radiation image of a complex pixel unit thereof. The complex pixel is shifted and set by a pixel unit in the predetermined direction, thus generating a plurality of radiation images. A composite image is generated on the basis of the plurality of radiation images.
Inventors:
TADA TAKUJI (JP)
Application Number:
PCT/JP2012/000353
Publication Date:
July 26, 2012
Filing Date:
January 20, 2012
Export Citation:
Assignee:
FUJIFILM CORP (JP)
TADA TAKUJI (JP)
TADA TAKUJI (JP)
International Classes:
A61B6/00; A61B6/02; G01T1/24; G01T7/00
Domestic Patent References:
| WO2008102654A1 | 2008-08-28 |
Foreign References:
| JP2010190777A | 2010-09-02 | |||
| JP2010236986A | 2010-10-21 |
Attorney, Agent or Firm:
YANAGIDA, Masashi et al. (JP)
Seiji Yanagida (JP)
Seiji Yanagida (JP)
Download PDF:
Claims:
Previous Patent: PROTECTOR AND WIRING HARNESS
Next Patent: ENCODING METHOD, DECODING METHOD, ENCODER, AND DECODER
Next Patent: ENCODING METHOD, DECODING METHOD, ENCODER, AND DECODER