北京大学学报（医学版）Issue(2)：340-343,4.DOI:10.3969/j.issn.1671-167X.2015.02.030
两种评价面部三维表面数据不对称度方法的比较
Comparison of two kinds of methods evaluating the degree of facial asymmetry by three-dimensional data
摘要
Abstract
Objective:To compare two digital methods of quantitatively accessing the degree of facial asymmetry by three-dimensional data.Methods: The three-dimensional data of 20 subjects were got by the FaceScan, and then were input to the reverse engineering software Imageware 13.0 and Geomagic 12 .Their mirror data were acquired and superimposed with the original data by the methods of interactive closest points ( ICP) and Procrustes analysis ( PA) .The mid-sagittal planes of the two methods were ex-tracted respectively, the degree of facial asymmetry and the distance of 21 automatic landmarks to mid-sagittal plane were calculated and compared.Results:The paired t test was taken and t=1.346, P=0.193.Conclusion:We can safely come to the conclusions that for the subjects with no evident facial asymmetry, there are no significant difference between the PA and the ICP methods for extracting the mid-sagittal plane from three-dimensional data.关键词
面部不对称/成像,三维/普氏分析法/迭代最近点算法Key words
Facial asymmetry/Imaging, three-dimensional/Interactive closest point/Procrustes analysis分类
医药卫生引用本文复制引用
熊玉雪,杨慧芳,赵一姣,王勇..两种评价面部三维表面数据不对称度方法的比较[J].北京大学学报（医学版）,2015,(2):340-343,4.基金项目
国家自然科学基金（81300921）、国家高技术研究发展计划（863计划，2013 AA040801）、北京大学口腔医学院青年科研基金（pkuss20120207）资助 Supported by the National Natural Science Foundation of China（81300921）， the National High Technology Research and Development Program of China （863 Program，2013AA040801）， and the Youth Scientific Research Funds of Peking University School and Hospital of Stomatology （）
