文章基本信息

标题：厳密制約を用いたインタラクティブなメッシュ変形手法
本地全文：下载
作者：吉岡康博 ; 増田宏 ; 古川慈之等
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：2007
卷号：61
期号：1
页码：85-90
DOI：10.3169/itej.61.85
出版社：The Institute of Image Information and Television Engineers
摘要：Interactive mesh editing techniques typically encode geometric shapes using discrete differential equations and approximately solve them using the least squares method. However, these techniques fail to precisely preserve user-defined constraints. In our method, user-defined constraints, such as positional constraints, are treated as hard constraints, and then the combination of hard and soft constraints is converted into a typical least-squares system using QR decomposition. Our method stably and efficiently calculates vertex positions that preserve differential properties. A well-known problem with hard constraints is over-constraints. If over-constraints are involved, they may cause the solver to halt the computation. We show how our framework resolves over-constrained situations, which include redundant and conflicting constraints.
关键词：コンピュータグラフィックス;メッシュモデリング;デフォーメーション