[1]袁天然,廖文和,程筱胜,等.牙龈软组织变形仿真技术研究[J].深圳大学学报理工版,2010,27(1):21-27.
 YUAN Tian-ran,LIAO Wen-he,CHENG Xiao-sheng,et al.Research on gum tissue deformation simulation techniques[J].Journal of Shenzhen University Science and Engineering,2010,27(1):21-27.
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牙龈软组织变形仿真技术研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年1期
页码:
21-27
栏目:
光电与信息工程
出版日期:
2010-01-31

文章信息/Info

Title:
Research on gum tissue deformation simulation techniques
文章编号:
1000-2618(2010)01-0021-07
作者:
袁天然1廖文和1程筱胜1戴宁1俞青2
1.南京航空航天大学机电学院,南京210016;
2.南京市口腔医院,南京210008
Author(s):
YUAN Tian-ran1LIAO Wen-he1CHENG Xiao-sheng1DAI Ning1and YU Qing2
1)College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,P.R.China 
2)Nanjing Stomatological,Hospital,Nanjing 210008,P.R.China
关键词:
信息处理技术牙龈变形正畸仿真三维牙颌模型生物特征分析医学图像处理
Keywords:
information processing technologygum tissue deformationorthodontics simulation3D dental modelbio-characteristic analysismedical image processing
分类号:
TP 391.7;R 246.83
文献标志码:
A
摘要:
基于三角网格描述的三维牙颌模型,根据牙龈变形的生理医学特性,结合牙龈变形仿真的实时性和逼真性要求,提出一种完整的牙龈软组织变形仿真算法.该算法根据三维牙颌模型的曲率特性,对其生物特征信息进行定量描述;在曲率特性分析的基础上进行区域划分,确定牙冠、牙龈及变形中的固定区域;根据牙龈的变形类似于带边界约束的弹塑性薄膜的变形特性,采用能量函数驱动方式,实现牙龈动态连续变形.
Abstract:
Simulating the real-time deformation of gum tissues in medical application,an integrated simulation framework was designed for the 3D dental model described by the triangular mesh and based on the physiological and medical characteristics of soft gum tissues.The bio-information of the 3D dental model was analyzed quantitatively according to its corresponding characteristics of surface curvature.During the deformation simulation,the gum tissue,tooth crown and fixed regions were recognized and separated interactively by using the curvature information as reference.Finally,under the assumption that the gum tissue deformation was verisimilar to the deformation of the elastic-plastic membrane with given boundary constraints,the gum tissue was deformed dynamically and continuously by minimizing the corresponding energy function.Experimental results demonstrate that the simulation framework can meet the medical requirements both in deformation efficiency and quality.

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备注/Memo

备注/Memo:
收稿日期:2009-03-04;修回日期:2009-12-15
基金项目:国家技术研究发展计划资助项目(2005AA420240);江苏省科技攻关资助项目(BE2005014)
作者简介:袁天然(1982-),男(汉族),河南省周口市人,南京航空航天大学博士研究生.E-mail:ytianran@gmail.com
通讯作者:廖文和(1965-),男(汉族),南京航空航天大学教授、博士生导师.E-mail:njwho@nuaa.edu.cn
更新日期/Last Update: 2010-02-06