Joint image unfolding apparatus, joint image unfolding method, and joint image unfolding program
AssigneeFUJIFILM Corporation
InventorsIchiro Sekiya, Nobutake Ozeki, Akinobu Hyodo, Hayato Aoki, Kenji Suzuki, Jun Masumoto
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Abstract
A joint image unfolding apparatus, a joint image unfolding method, and a non-transitory computer readable recording medium storing a joint image unfolding program are provided to make it possible to check information regarding the entire cartilage in a joint with high accuracy. An image obtaining unit (21) obtains a three-dimensional image of a joint having cartilage. An unfolding unit (23) unfolds the cartilage included in the three-dimensional image with reference to a specific reference axis in the joint to generate an unfolded image.
Claims20
A joint image unfolding apparatus comprising:
- at least one processor configured to:
- obtain a three-dimensional image of a joint having cartilage,
- set, on respective side surfaces of the joint, center positions along a latitudinal direction determined on the basis of an anatomical characteristic of the joint and set an axis that connects the center positions as a reference axis, wherein each of the center positions is a center of an ellipse;
- set an anatomical axis along a longitudinal direction that passes through a first center position of the reference axis and a second center position of the joint which is a predetermined distance away from the reference axis along the longitudinal direction;
- set a reference plane to coincide with the reference axis and the anatomical axis;
- and
- generate an unfolded image with reference to the reference plane and the reference axis, wherein an angle with respect to the anatomical axis corresponding to a reference position is set to 0 degree for the reference plane.
A joint image unfolding method comprising:
- obtaining a three-dimensional image of a joint having cartilage;
- setting, on respective side surfaces of the joint, center positions determined on the basis of an anatomical characteristic of the joint and set an axis that connects the center positions along a latitudinal direction as a reference axis, wherein each of the center positions is a center of an ellipse;
- setting an anatomical axis along a longitudinal direction that passes through a first center position of the reference axis and a second center position of the joint which is a predetermined distance away from the reference axis along the longitudinal direction;
- setting a reference plane to coincide with the reference axis and the anatomical axis;
- and
- generating an unfolded image with reference to the reference plane and the reference axis, wherein an angle with respect to the anatomical axis corresponding to a reference position is set to 0 degree for the reference plane.
A non-transitory computer readable recording medium storing a joint image unfolding program for causing a computer to perform a procedure comprising:
- obtaining a three-dimensional image of a joint having cartilage;
- setting, on respective side surfaces of the joint, center positions along a latitudinal direction determined on the basis of an anatomical characteristic of the joint and set an axis that connects the center positions as a reference axis, wherein each of the center positions is a center of an ellipse;
- setting an anatomical axis along a longitudinal direction that passes through a first center position of the reference axis and a second center position of the joint which is a predetermined distance away from the reference axis along the longitudinal direction;
- setting a reference plane to coincide with the reference axis and the anatomical axis;
- and
- generating an unfolded image with reference to the reference plane and the reference axis, wherein an angle with respect to the anatomical axis corresponding to a reference position is set to 0 degree for the reference plane.
Dependencies are inferred from the claim text.