Skeleton Extraction and Retrieval of 3D Model with Multi-closed Sections

HUO Lei; LV Xue-qiang; ZHANG Kai

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Skeleton Extraction and Retrieval of 3D Model with Multi-closed Sections

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- Skeleton Extraction and Retrieval of 3D Model with Multi-closed Sections
- Vol. 32, Issue 1, Pages: 85-90(2015)
- 作者机构：
  
  1. 1 北京信息科技大学网络文化与数字传播北京市重点实验室机构,北京,100101
  2. 2 北京市朝阳区市政市容管理委员会,北京,100021
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015
- 稿件说明：
移动端阅览
霍磊, 吕学强, 张凯. 多封闭区间三维模型的骨架提取与检索[J]. 微电子学与计算机, 2015, 32(1): 85-90.

HUO Lei, LV Xue-qiang, ZHANG Kai. Skeleton Extraction and Retrieval of 3D Model with Multi-closed Sections[J]. 2015, 32(1): 85-90.
霍磊, 吕学强, 张凯. 多封闭区间三维模型的骨架提取与检索[J]. 微电子学与计算机, 2015, 32(1): 85-90. DOI：

HUO Lei, LV Xue-qiang, ZHANG Kai. Skeleton Extraction and Retrieval of 3D Model with Multi-closed Sections[J]. 2015, 32(1): 85-90. DOI：

摘要

提出了动态邻接封闭区间连接方法以及基于球面特征的检索方法.依据模型封闭区间的位置关系以及所占比重对原模型的多个封闭区间进行连接

将原模型合并成一个封闭区间

计算模型各点的μ值

即测地线距离函数值

分裂区间

聚合成骨架点

去除冗余点得到连通的骨架;以μ值最小的骨架点为球心

在骨架上建立个球面

提取球面相交的特征用于检索.实验结果表明

本文算法能有效提取多封闭区间三维模型骨架

提高三维模型的查准率.

Abstract

This paper presents a method of dynamic connection of adjacent closed sections and a retrieval method based on spherical feature. Connect the closed sections by the position relationship and the proportion of the original model

merge the original model into one closed section

split the model according to the geodesic distance function value of each point

get the skeleton point from each section

and get the connected skeleton after removing the redundant points. Use the skeleton point of minimum geodesic distance function value as the center of the sphere

build some spherical surfaces on the skeleton

get the characteristics of the spherical intersection used for retrieval. The experimental results show that the method can extract the skeleton effectively and improve the retrieval precision.

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