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学科主题: 口腔医学
题名:
Personalized Tooth Shape Estimation From Radiograph and Cast
作者: Pei, Yuru1; Shi, Fuhao1; Chen, Hua2; Wei, Jia1; Zha, Hongbin1; Jiang, Ruoping2; Xu, Tianmin2
关键词: Backprojection ; contour constraint ; nonrigid registration ; 3-D personalized tooth reconstruction
刊名: IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
发表日期: 2012-09-01
DOI: 10.1109/TBME.2011.2174993
卷: 59, 期:9, 页:2400-2411
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Engineering, Biomedical
研究领域[WOS]: Engineering
关键词[WOS]: MICRO-COMPUTED TOMOGRAPHY ; STATISTICAL-MODELS ; 3-D RECONSTRUCTION ; RIB CAGE ; SEGMENTATION ; IMAGES ; REGISTRATION
英文摘要:

Three-dimensional geometric information of teeth is usually needed in pre- and postoperative diagnoses of orthodontic dentistry. The computerized tomography can provide comprehensive 3-D teeth geometries. However, there is still a discussion on computed tomography (CT) as a routine in orthodontic dentistry due to radiation dose. Moreover, the CT is useless when a dentist needs to extract 3-D structures from old archive files with only radiographs and casts, where patient′s teeth changed ever since. In this paper, we propose a reconstruction framework for patient-specific teeth based on an integration of 2-D radiographs and digitized casts. The reconstruction is under a template-fitting framework. The shape and orientation of teeth templates are tuned in accordance with patient′s radiographs. Specially, the tooth root morphology is controlled by 2-D contours in radiographs. With ray tracing and a contour plane assumption, 2-D root contours in radiographs are projected back to 3-D space, and guide tooth root deformations. Moreover, the template′s crown is deformed nonrigidly to fit digitized casts that bear patient′s crown details. The system allows 3-D tooth reconstruction with patient-specific geometric details from just casts and 2-D radiographs.

语种: 英语
所属项目编号: 2011CB302202 ; 60803067 ; 2009AA01Z312
项目资助者: National Basic Research Program of China ; National Natural Science Foundation of China ; National High Technology Research and Development Program of China 863
WOS记录号: WOS:000307895000003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/63727
Appears in Collections:北京大学口腔医学院_期刊论文

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作者单位: 1.Peking Univ, Dept Machine Intelligence, Key Lab Machine Percept MOE, Beijing 100871, Peoples R China
2.Peking Univ, Stomatol Hosp, Sch Stomatol, Beijing 100081, Peoples R China

Recommended Citation:
Pei, Yuru,Shi, Fuhao,Chen, Hua,et al. Personalized Tooth Shape Estimation From Radiograph and Cast[J]. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING,2012,59(9):2400-2411.
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