Title:
IMAGE PROCESSING DEVICE, RADIATION IMAGE IMAGE-PICKUP SYSTEM, IMAGE PROCESSING PROGRAM, AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/092099
Kind Code:
A1
Abstract:
In the present invention, a plurality of projection images of a subject between a radiation detector and a radiation emission unit are obtained at each different incidence angle by moving the radiation emission unit and varying the angle of incidence, with respect to the subject, of emission rays emitted from the radiation emission unit. Frequency processing is carried out for reducing, relative to high frequency components, low frequency components of a projected image in which the incidence angle is at least a first threshold value. A tomographic image of the subject is generated by performing reconstruction on the basis of a projection image in which the angle of incidence is less than the first threshold value and the projection image which was subjected to frequency processing.
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Inventors:
FUKUDA WATARU (JP)
Application Number:
PCT/JP2013/083129
Publication Date:
June 19, 2014
Filing Date:
December 10, 2013
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
A61B6/02; A61B6/00
Foreign References:
| JPH09327453A | 1997-12-22 | |||
| JP2001029342A | 2001-02-06 | |||
| JP2012010891A | 2012-01-19 | |||
| JP2002263093A | 2002-09-17 | |||
| JP2013031641A | 2013-02-14 | |||
| JP2006271661A | 2006-10-12 |
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
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