Image processing apparatus, control method thereof, and computer-readable storage medium
AssigneeCanon Kabushiki Kaisha
InventorHiroyuki Omi
Life of this patent
Estimating the term…
Abstract
An image processing apparatus includes an image acquisition unit adapted to acquire a radiation image capturing an object, a function acquisition unit adapted to acquire a point spread function from the radiation image, and a determination unit adapted to determine, based on a state of the point spread function, presence/absence of a movement of the object in the radiation image.
Claims12
An image processing apparatus comprising:
- one or more processors;
- and
- a memory storing a program which, when executed by the one or more processors, causes the one or more processors to function as units comprising:
- (1) an image acquisition unit adapted to acquire a radiation image capturing an object;
- (2) a function acquisition unit adapted to acquire a point spread function from the radiation image;
- and
- (3) a determination unit adapted to determine, based on a ratio of a length of a shape based on the point spread function projected in a first direction and a length of a shape based on the point spread function projected in a second direction, presence/absence of a movement of the object.
A control method of an image processing apparatus, the method comprising:
- acquiring, by an image acquisition unit, a radiation image capturing an object;
- acquiring, by a function acquisition unit, a point spread function from the radiation image;
- and
- determining, by a determination unit, based on a ratio of a length of a shape based on the point spread function projected in a first direction and a length of a shape based on the point spread function projected in a second direction, presence/absence of a movement of the object.
A non-transitory computer-readable storage medium storing a computer program for causing a computer to function as each unit of an image processing apparatus, the apparatus comprising:
- an image acquisition unit adapted to acquire a radiation image capturing an object;
- a function acquisition unit adapted to acquire a point spread function from the radiation image;
- and
- a determination unit adapted to determine, based on a ratio of a length of a shape based on the point spread function projected in a first direction and a length of a shape based on the point spread function projected in a second direction, presence/absence of a movement of the object.
Dependencies are inferred from the claim text.