Title:
RADIO TOMOGRAPHIC IMAGE GENERATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/081245
Kind Code:
A1
Abstract:
[Problem] To improve the sharpness and the contrast of small structures and the signal-to-noise ratio (S/N) of a planar member in a radio tomographic image generation device for generating a tomographic image by performing reconstruction using a successive approximation method. [Solution] A radio tomographic image generation device is provided with: a successive approximation reconstruction unit (41) for generating a plurality of reconstructed images having mutually different iterative calculation counts by means of a successive approximation method; a region division unit (44) which uses a radiographic image signal to acquire information regarding structure, and uses this information regarding structure to divide a region where a tomographic image is generated, into a plurality of divided regions comprising information regarding mutually different structures; and an image synthesis unit (45) which, based on the information regarding the structures of the divided regions, generates for each divided region a partial tomographic image using the reconstructed images having mutually different iterative calculation counts, and uses the generated partial tomographic images for each divided region to generate a tomographic image of a photographic subject.
Inventors:
NOGUCHI MASAFUMI (JP)
Application Number:
PCT/JP2011/007001
Publication Date:
June 21, 2012
Filing Date:
December 14, 2011
Export Citation:
Assignee:
FUJIFILM CORP (JP)
NOGUCHI MASAFUMI (JP)
NOGUCHI MASAFUMI (JP)
International Classes:
A61B6/03
Domestic Patent References:
| WO2011122613A1 | 2011-10-06 |
Foreign References:
| JP2007202700A | 2007-08-16 | |||
| JP2006025868A | 2006-02-02 | |||
| JP2009172380A | 2009-08-06 | |||
| JP2008006288A | 2008-01-17 | |||
| JP2007202700A | 2007-08-16 |
Attorney, Agent or Firm:
YANAGIDA, Masashi et al. (JP)
Seiji Yanagida (JP)
Seiji Yanagida (JP)
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Claims: