摘要
针对模型降维的需要,提出一种实体模型的多分辨率中轴生成方法.首先根据模型的层次寻找模型中需要细化的部分,并据此对边界进行体素化;其次使用距离蔓延的方法计算多分辨率体素的距离;最后根据体素的距离计算出多分辨率的中轴体素.实验结果表明,该方法可以以低时间空间代价生成高质量的多分辨率中轴.
According to the requirement of the dimensionality reduction of solid models, a multi-resolution medial axis generation method is proposed for solid models. According to different model levels, the parts of the model that need to be refined are found out first. Then, the boundary is voxelized with the help of the results. After that, the distances of the multi-resolution voxels are computed by distance dilation method. Finally, the multi-resolution medial axis voxels are computed according to the distances of voxels. Several groups of experiments are given to demonstrate that the multi-resolution medial axis of high quality can be generated with low time and space cost using the proposed method.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2015年第6期1110-1119,共10页
Journal of Computer-Aided Design & Computer Graphics
基金
国家自然科学基金(61173126
61163016)
国家科技支撑计划项目(2011AA100804)
浙江省自然科学基金重点项目(LZ12F02001)
关键词
中轴
多分辨率体素化
距离蔓延
实体模型
medial axis
multi-resolutional voxelization
distance dilation
solid model
作者简介
朱厚盛（1985-），男，博士研究生，主要研究方向为计算机图形学
刘玉生（1970-），男，博士，教授，博士生导师，论文通讯作者，主要研究方向为CAD、模型驱动设计、基于模型的系统工程．（ysliu@cad．zju．edu．cn）
