文章基本信息

标题：３次元表面の強い特徴と閉じた曲率線を用いた四辺形優位の再メッシュ化
本地全文：下载
作者：森田伊織 ; 坂本博康
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2010
卷号：64
期号：7
页码：1044-1053
DOI：10.3169/itej.64.1044
出版社：The Institute of Image Information and Television Engineers
摘要：A 3-dimensional model obtained by a laser scanner is typically an unstructured triangular mesh with highly detailed data so that remeshing is desirable for various applications. Among diverse remeshing techniques, anisotropic polygonal remeshing based on curvature lines is one of the most convincing methods. This paper proposes a quad-dominant remeshing method by using strong features and closed curvature lines of a 3D surface in order to generate more regular mesh structure than conventional methods. The proposed method significantly improves the instability of conventional traces of curvature lines by introducing possible swapping of principal directions. A new filtering technique is devised for propagating principal directions from anisotropic regions to isotropic ones. The proposed method also introduces a robust estimator of irregular points on the 3D surface and a detection scheme for closed curvature lines such as circumferences of a generalized cylinder. Results of our remeshing method for six objects show smaller number of irregular points and more reliable and effective quad-dominant meshes than those of conventional methods.
关键词：Anisotropic remeshing;curvature tensor;quad-dominant remeshing