| 摘要 |
<p>A three-dimensional joint structure measuring method in which a broken portion of a joint or an articular cartilage is extracted with good reproducibility precisely and quickly, and the joint and the broken portion can be analyzed three-dimensionally, quantitatively, and readily. The method defines a joint image to be evaluated by a three-dimensional labeling with respect to a three-dimensional image. This three-dimensional image is formed by stacking either binary images of a joint section to be examined, which are created by the step of padding the medullary cavity region, i.e., an internal cavity region of the binary image of the joint section to be examined, by an expansion-contraction method, and extracting the contour of the joint section image or binary images of the joint section which are not pre-processed.</p> |
