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.

Date of Patent:
Oct. 02, 2018

Filed:

Jun. 26, 2017
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventor:

Jun Masumoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 5/00 (2006.01); G06T 7/38 (2017.01); G06T 7/00 (2017.01); G06T 7/30 (2017.01); A61B 5/05 (2006.01);
U.S. Cl.
CPC ...
G06T 5/006 (2013.01); G06T 7/30 (2017.01); G06T 7/38 (2017.01); G06T 7/97 (2017.01); G06T 2207/10088 (2013.01); G06T 2207/20 (2013.01); G06T 2207/30016 (2013.01);
Abstract

A region extraction unit extracts first and second shape-invariant regions corresponding to each other from first and second three-dimensional images acquired by an MRI apparatus. A first registration unit acquires a first deformation vector by performing rigid registration between the first and second shape-invariant regions. A second registration unit acquires a second deformation vector by performing non-rigid registration between the first and second three-dimensional images in each shape-invariant region. A magnetic field distortion vector calculation unit calculates a magnetic field distortion vector, which represents relative magnetic field distortion between the first and second three-dimensional images based on the first and second deformation vectors.


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