| CT辅助逆向工程技术在畸齿矫正中的应用研究 |
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| 引用本文： | 魏英,田宝玉,杨民.CT辅助逆向工程技术在畸齿矫正中的应用研究[J].中国体视学与图像分析,2010(1):18-23. |
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| 作者姓名： | 魏英 田宝玉 杨民 |
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| 作者单位： | 北京邮电大学泛网无线通信教育部重点实验室;北京信息科技大学自动化学院;北京航空航天大学机械工程及自动化学院; |
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| 基金项目： | 北京市教育委员会科技发展计划面上项目(Km200910772009) |
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| 摘 要： | 如何快速、高精度获取齿形CAD模型是目前畸齿矫正行业中的技术难题。介绍了一种基于3D-CT的牙颌数字模型快速获取方法。利用3D-CT扫描获得牙齿石膏阳模精细的三维灰度图像;对三维CT图像进行相应的图像、图形处理,获取实物内外表面点云数据;并将其输入CAD设计平台,逆求出实物原型的CAD模型。与传统逆求方法相比,该方法具有扫描速度快、点云数据各向等分辨率和逆求精度高的优点。
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| 关 键 词： | 三维计算机断层扫描 逆向工程 牙齿正畸 点云数据 |
Application of 3D-CT assisted reverse engineering in orthodontics |
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| WEI Ying,TIAN Baoyu,YANG Min.Application of 3D-CT assisted reverse engineering in orthodontics[J].Chinese Journal of Stereology and Image Analysis,2010(1):18-23. |
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| Authors: | WEI Ying TIAN Baoyu YANG Min |
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| Institution: | WEI Ying1,2,TIAN Baoyu1,YANG Min3(1.Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing University of Posts , Telecommunications,Beijing 100876,China,2.College of Automation,Beijing Information Science & Technology Univisity,Beijing 100101,3.School of Mechanical Engineering , Automation,Beihang University,Beijing 100191,China) |
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| Abstract: | How to get the CAD model of the dental shape rapidly and accurately is the key problem in orthodontics presently.A method of obtaining the CAD model of dental shape rapidly based on 3D-CT(three-dimensional computed tomography) is introduced.According to this method,3D-CT scanning is used to get the precise 3D gray images of the dental plaster model.Through relevant image and graphics processing approaches,the internal and external point cloud data are obtained,and are input to CAD platform to design the CAD... |
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| Keywords: | 3D-CT(three dimensional computed tomography) Reverse engineering Orthodontics Point cloud data |
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