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US 12,178,630 B2Granted
Image orientation setting apparatus, image orientation setting method, and image orientation setting program
AssigneeFUJIFILM Corporation
InventorFutoshi Sakuragi
Life of this patent
Estimating the term…
Abstract
A core-line extraction unit extracts a core line of the blood vessel from a three-dimensional image of a subject including the blood vessel. A local-route extraction unit extracts a local route of the core line within a predetermined range based on a reference point on the core line. In a case where a plurality of points on the local route are projected, a plane setting unit sets a plane having an orientation in which a distribution of a plurality of the projected points has a reference value based on a maximum value of the distribution, as a display plane of the three-dimensional image.
Claims17
An image orientation setting apparatus comprising:
- a processor that is configured to
- extract a core line of a blood vessel from a three-dimensional image of a subject including the blood vessel,
- extract a local route of the core line within a predetermined range based on a reference point on the core line, and
- in a case where a plurality of points on the local route are projected, set a plane among a plurality of tentative planes having different orientations as a display plane of the three-dimensional image, wherein the plane set as the display plane has an orientation in which a sum of distances from each of the plurality of points to the plane is minimized.
1 more element
An image orientation setting method comprising:
- extracting a core line of a blood vessel from a three-dimensional image of a subject including the blood vessel;
- extracting a local route of the core line within a predetermined range based on a reference point on the core line;
- and
- in a case where a plurality of points on the local route are projected, setting a plane among a plurality of tentative planes having different orientations as a display plane of the three-dimensional image, wherein the plane set as a display plane has an orientation in which a sum of distances from each of the plurality of points to the plane is minimized.
1 more element
A non-transitory computer readable recording medium storing an image orientation setting program causing a computer to execute a process comprising:
- extracting a core line of a blood vessel from a three-dimensional image of a subject including the blood vessel;
- extracting a local route of the core line within a predetermined range based on a reference point on the core line;
- and
- in a case where a plurality of points on the local route are projected, setting a plane among a plurality of tentative planes having different orientations as a display plane of the three-dimensional image, wherein the plane set as a display plane has an orientation in which a sum of distances from each of the plurality of points to the plane is minimized.
1 more element
An image orientation setting apparatus comprising:
- a processor that is configured to
- extract a core line of a blood vessel from a three-dimensional image of a subject including the blood vessel;
- extract a local route of the core line within a predetermined range based on a reference point on the core line;
- set a tentative plane projecting a plurality of points on the local route,
- project the plurality of points onto the tentative plane,
- calculate a variance of the plurality of projected points in the tentative plane,
- repeat to change an orientation of the tentative plane and to calculate a variance of a plurality of projected points projected onto the tentative plane with the changed orientation to obtain the plurality of calculated variances respectively corresponding to the tentative planes with the changed orientations, and
- set a tentative plane having an orientation in which the calculated variance is a maximum among all the calculated variances as the display plane of the three-dimensional image.
5 more elements
An image orientation setting method comprising:
- extracting a core line of a blood vessel from a three-dimensional image of a subject including the blood vessel;
- extracting a local route of the core line within a predetermined range based on a reference point on the core line;
- setting a tentative plane projecting a plurality of points on the local route;
- projecting the plurality of points onto the tentative plane;
- calculating a variance of the plurality of projected points in the tentative plane;
- repeating to change an orientation of the tentative plane and to calculate a variance of a plurality of projected points projected onto the tentative plane with the changed orientation to obtain the plurality of calculated variances respectively corresponding to the tentative planes with the changed orientations;
- and
- setting a tentative plane having an orientation in which the calculated variance is a maximum among all the calculated variances as the display plane of the three-dimensional image.
5 more elements
A non-transitory computer readable recording medium storing an image orientation setting program causing a computer to execute a process comprising:
- extracting a core line of a blood vessel from a three-dimensional image of a subject including the blood vessel;
- extracting a local route of the core line within a predetermined range based on a reference point on the core line;
- setting a tentative plane projecting a plurality of points on the local route;
- projecting the plurality of points onto the tentative plane;
- calculating a variance of the plurality of projected points in the tentative plane;
- repeating to change an orientation of the tentative plane and to calculate a variance of a plurality of projected points projected onto the tentative plane with the changed orientation to obtain the plurality of calculated variances respectively corresponding to the tentative planes with the changed orientations;
- and
- setting a tentative plane having an orientation in which the calculated variance is a maximum among all the calculated variances as the display plane of the three-dimensional image.
5 more elements
Dependencies are inferred from the claim text.