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Title:
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/250900
Kind Code:
A1
Abstract:
An image processing device that: acquires a plurality of radiographs that have been captured by radiating a subject with radiation and correspond to a plurality of different radiation energies; and, from the acquired plurality of radiographs, generates a plurality of attenuation rate images that are to be used for energy subtraction processing. The image processing device: corrects the radiographs or the attenuation rate images to reduce attenuation rate error caused by radiation dose, subject thickness, and/or radiation energy; and uses the plurality of attenuation rate images post-correction to generate material property images by means of the energy subtraction processing.

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Inventors:
IWASHITA ATSUSHI (JP)
TORII SOTA (JP)
NODA TAKESHI (JP)
TERUI KOSUKE (JP)
TSUKUDA AKIRA (JP)
RYUICHI FUJIMOTO (JP)
Application Number:
PCT/JP2020/022726
Publication Date:
December 17, 2020
Filing Date:
June 09, 2020
Export Citation:
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Assignee:
CANON KK (JP)
International Classes:
A61B6/00; G01T7/00
Domestic Patent References:
WO2014041889A12014-03-20
Foreign References:
JP2019068953A2019-05-09
US5412703A1995-05-02
JP2012120200A2012-06-21
US20180113227A12018-04-26
US20140005533A12014-01-02
Attorney, Agent or Firm:
OHTSUKA, Yasunori et al. (JP)
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