Hierarchical Quad Meshing of 3D Scanned Surfaces

Bukenberger Dennis R.; Lensch Hendrik P. A.

摘要

Abstract >In this paper we present a novel method to reconstruct watertight quad meshes on scanned 3D geometry. There exist many different approaches to acquire 3D information from real world objects and sceneries. Resulting point clouds depict scanned surfaces as sparse sets of positional information. A common downside is the lack of normals, connectivity or topological adjacency data which makes it difficult to actually recover a meaningful surface. The concept described in this paper is designed to reconstruct a surface mesh despite all this missing information. Even when facing varying sample density, our algorithm is still guaranteed to produce watertight manifold meshes featuring quad faces only. The topology can be set‐up to follow superimposed regular structures or align naturally to the point cloud's shape. Our proposed approach is based on an initial divide and conquer subsampling procedure: Surface samples are clustered in meaningful neighborhoods as leafs of a kd‐tree. A representative sample of the surface neighborhood is determined for each leaf using a spherical surface approximation. The hierarchical structure of the binary tree is utilized to construct a basic set of loose tiles and to interconnect them. As a final step, missing parts of the now coherent tile structure are filled up with an incremental algorithm for locally optimal gap closure. Disfigured or concave faces in the resulting mesh can be removed with a constrained smoothing operator. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“main”> <标题类型=“main”>抽象</ title> >在本文中，我们介绍了一种在扫描3D几何上重建水密四边形网格的新方法。存在许多不同的方法来从现实世界对象和风景中获取3D信息。结果点云将扫描的表面描绘为稀疏位置信息集。共同的缺点是缺乏正常，连通性或拓扑邻接数据，这使得难以实际恢复有意义的表面。本文描述的概念旨在重建表面网，尽管所有这些缺失的信息。即使在面对不同的样本密度时，我们的算法仍然保证生产仅具有四面孔的水密歧管网格。可以设置拓扑以遵循叠加常规结构，或者自然对齐点云的形状。我们所提出的方法是基于初始划分和征服补偿程序：表面样本在有意义的邻域中聚集在KD树的叶子中。使用球形表面近似确定每个叶子的表面邻域的代表性样本。二进制树的分层结构用于构造一组基本的松散瓦片并互连它们。作为最终步骤，现在填充了现在相干瓷砖结构的缺失部分，用于局部最佳间隙闭合的增量算法。可以使用受约束的平滑操作员移除所得到的网格中的伪造或凹面。</ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-16902/'>《Computer Graphics Forum: Journal of the European Association for Computer Graphics》</a> <b style="margin: 0 2px;">|</b><span>2018年第5期</span><b style="margin: 0 2px;">|</b><span>共11页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Bukenberger Dennis R.&option=202" target="_blank" rel="nofollow">Bukenberger Dennis R.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lensch Hendrik P. A.&option=202" target="_blank" rel="nofollow">Lensch Hendrik P. A.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Computer Graphics Eberhard Karls UniversityTübingen Germany;</p> <p>Department of Computer Graphics Eberhard Karls UniversityTübingen Germany;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/7754.html" title="计算机的应用">计算机的应用;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Categories and Subject Descriptors (according to ACM CCS):&option=203" rel="nofollow">Categories and Subject Descriptors (according to ACM CCS):;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=1.3.5 Computer Graphics: Computational Geometry&option=203" rel="nofollow">1.3.5 Computer Graphics: Computational Geometry;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Object Modeling—Hierarchy and geometric transformations&option=203" rel="nofollow">Object Modeling—Hierarchy and geometric transformations;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Modeling packages&option=203" rel="nofollow">Modeling packages;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Object hierarchies&option=203" rel="nofollow">Object hierarchies;</a> </p> <div class="translation"> 机译：类别和主题描述符（根据ACM CCS）:;1.3.5 [计算机图形]：计算几何;对象建模 - 层次结构和几何变换;建模包;对象层次结构; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704022260271.html">Hierarchical Quad Meshing of 3D Scanned Surfaces</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Bukenberger Dennis R.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Bukenberger Dennis R.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lensch Hendrik P. 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