The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2024
Filed:
Feb. 22, 2022
Fujifilm Corporation, Tokyo, JP;
Takahiro Kawamura, Kanagawa, JP;
FUJIFILM CORPORATION, Tokyo, JP;
Abstract
An image acquisition unit acquires two radiographic images based on radiation which has different energy distributions and has been transmitted through a subject including a soft part and a bone part. An attenuation coefficient derivation unit derives a difference between a value of an attenuation coefficient of the soft part×a thickness of the soft part+an attenuation coefficient of the bone part×a thickness of the bone part and each pixel value of the radiographic image for each of the different energy distributions while changing the attenuation coefficient of the soft part for each of the different energy distributions, the thickness of the soft part, the attenuation coefficient of the bone part for each of the different energy distributions, and the thickness of the bone part from initial values and derives the attenuation coefficient of the soft part and the attenuation coefficient of the bone part for each of the different energy distributions at which the difference is minimized or the difference is less than a predetermined threshold value.