System for measuring space width of joint, method for measuring space width of joint and recording medium
AssigneeFUJIFILM Corporation
InventorsTomoyuki Takahashi, Noriaki Ida
Life of this patent
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Abstract
A method for measuring space width of joint includes: a joint image input step of inputting an image of a joint; a contour detecting step of detecting contours of a pair of bones constituting the joint; a measurement range setting step of setting a measurement range of a space of the joint based on the contours detected in the contour detecting step; a space width calculating step of calculating a space width which is a distance between the pair of bones within the measurement range set in the measurement range setting step; and a display step of displaying the space width calculated in the space width calculating step.
Claims34
A system for measuring space width of joint, comprising:
- a joint image input unit which inputs an image of a joint;
- a contour detection unit which detects contours of a pair of bones constituting the joint;
- a measurement range setting unit which sets a measurement range of a space of the joint based on the contours detected by the contour detection unit;
- a space width calculation unit which calculates a space width which is indicated by a distance value between the pair of bones in the measurement range set by the measurement range setting unit as a distance value between two points at which a predetermined straight line intersects with the contours of the pair of bones in the measurement range;
- and
- a display unit which displays the space width calculated by the space width calculation unit.
A method for measuring space width of joint, comprising:
- a joint image input step of inputting an image of a joint;
- a contour detecting step of detecting contours of a pair of bones constituting the joint;
- a measurement range setting step of setting a measurement range of a space of the joint based on the contours detected in the contour detecting step;
- a space width calculating step of calculating a space width which is a distance between the pair of bones within the measurement range set in the measurement range setting step;
- and
- a display step of displaying the space width calculated in the space width calculating step.
A method for measuring space width of joint, comprising:
- a contour image forming step of forming a contour image by detecting contours of a pair of bones constituting the joint from a plurality of images of a joint, the images being obtained by photographing a joint of a same subject at different time points;
- a space width calculating step of calculating a space width which is a distance between a pair of bones of the joint in a measurement range set in advance;
- a space width graph creating step of creating a space width graph in which the calculated space width is brought into correspondence with a position in the space of the joint, for each of the plurality of images of the joint;
- and
- a display step of displaying the plurality of joint images or the contour images obtained from the images of the joint by arranging the images side by side on a display screen, displaying a plurality of the space width graphs corresponding to the plurality of images of the joint on a place different from a place where the images of the joint or contour images are displayed by superimposing the graphs, and displaying information which represents a correspondence relation of a predetermined point on the space width graph and a point on the image of the joint or the contour image.
A recording medium comprising a computer program causing a computer to execute a process for measuring a joint space width, the process comprising:
- a joint image input step of inputting an image of a joint;
- a contour detecting step of detecting contours of a pair of bones constituting the joint;
- a measurement range setting step of setting a measurement range of a space of the joint based on the contours detected in the contour detecting step;
- a space width calculating step of calculating a space width which is a distance between the pair of bones within the measurement range set by the measurement range setting step;
- and
- a display step of displaying the space width calculated in the space width calculating step.
A recording medium comprising a computer program causing a computer to execute a process for measuring a joint space width, the process comprising steps of:
- detecting contours of a pair of bones constituting a joint from an inputted image of the joint;
- setting a measurement range of a space width of the joint based on the detected contours;
- calculating a space width which is a distance between the pair of bones in the set measurement range;
- forming a contour image based on the detected contours;
- forming a space width graph in which a position in the joint and the space width are brought into correspondence with each other based on the calculated space width;
- storing the image of the joint or the contour image, and the space width graph;
- displaying the inputted image of the joint or the stored image of the joint, or contour images obtained from the images of the joint, and the space width graph corresponding to these joint images on a display screen;
- and
- performing processing of displaying a predetermined point on the image of the joint or the contour image, the points corresponding to a predetermined point on the space width graph on the display screen.
Dependencies are inferred from the claim text.