| 講演抄録/キーワード |
| 講演名 |
2009-01-21 09:50
[ポスター講演]A new Registration Method for Three-Dimensional Knee Nearthrosis Model Using Two X-ray Images ○Wei-Li Dai・Ci-Bin Syu(National Central Univ.)・National Central Univ.(Far Eastern Memorial Hospital)・Shang-Chih Lin・Jiing-Yih Lai(National Central Univ.) MI2008-179 |
| 抄録 |
(和) |
The purpose of this study was to develop a method to analyze the pose of the knee nearthrosis mounted and to automate the registration procedure for easy use in clinical applications. The proposed registration method was essentially a model-based method, in which the CAD model was acquired by reverse engineering. The CAD model was converted into a two-dimensional image by a rendering technique, and the compatibility of the X-ray image and the image of the CAD model was investigated. To avoid the optimization of six unknown parameters with respect to the relative pose between the condyle and tibial models, a two-dimensional coordinate system was set on each component of the X-ray images. A three-dimensional coordinate system was also set on each of the two nearthrosis components. With such a setup, there was only one unknown rotational angle on each component, which was determined by an optimum algorithm in accordance with the contour error between the X-ray image and the image of the CAD model. Extensive computer simulation has been implemented to investigate the feasibility of the proposed registration method. |
| (英) |
The purpose of this study was to develop a method to analyze the pose of the knee nearthrosis mounted and to automate the registration procedure for easy use in clinical applications. The proposed registration method was essentially a model-based method, in which the CAD model was acquired by reverse engineering. The CAD model was converted into a two-dimensional image by a rendering technique, and the compatibility of the X-ray image and the image of the CAD model was investigated. To avoid the optimization of six unknown parameters with respect to the relative pose between the condyle and tibial models, a two-dimensional coordinate system was set on each component of the X-ray images. A three-dimensional coordinate system was also set on each of the two nearthrosis components. With such a setup, there was only one unknown rotational angle on each component, which was determined by an optimum algorithm in accordance with the contour error between the X-ray image and the image of the CAD model. Extensive computer simulation has been implemented to investigate the feasibility of the proposed registration method. |
| キーワード |
(和) |
RSA / Three-dimensional pose estimation / Total knee arthoplasty / Model-based / / / / |
| (英) |
RSA / Three-dimensional pose estimation / Total knee arthoplasty / Model-based / / / / |
| 文献情報 |
信学技報, vol. 108, no. 385, MI2008-179, pp. 539-544, 2009年1月. |
| 資料番号 |
MI2008-179 |
| 発行日 |
2009-01-12 (MI) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
MI2008-179 |