Paper Abstract and Keywords |
Presentation |
2013-05-24 13:55
A semi-automatic contour extraction of the bones of the shoulder joint from Fluoroscopic X-ray image Hiroki Shima, Toyohiko Hayashi (Niigata Univ.), Hiroshi Tanaka, Hiroki Ninomiya, Hiroaki Inui, Masahiko Komai, Katsuya Nobuhara (Nobuhara Hospital) MBE2013-7 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In order to analyze the motion of the shoulder, a method for measuring the position and orientation of the bone in three dimensions, named 2D/3D registration, has been developed by combining a three-dimensional bone model and fluoroscopic X-ray images. This method requires us to extract the bone contour from fluoroscopic X-ray image. Conventional methods, however, have several problems caused by manual extraction, such as subjectivity and the dependence upon examiner’s experience and technique. Then we developed a semi-automatic contour extraction by expanding our previous method in order to achieve more accurate and stable bone-contour extraction. The proposed method can estimate bone contour iteratively from an initial contour digitized roughly, using the gray level distribution of the image near the initial contour. In order to evaluate its effectiveness, we carried out several experiments using three different fluoroscopic X-ray images of the shoulder. All empirical results suggested that the proposed method would have a potential to extract an accurate bone contour of the shoulder with high reproducibility. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
shoulder / fluoroscopic X-ray image / born contour / 2D/3Dregistration / semi-automatic contour extraction / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 61, MBE2013-7, pp. 31-35, May 2013. |
Paper # |
MBE2013-7 |
Date of Issue |
2013-05-17 (MBE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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