Simulation ready anatomy model generation pipeline for virtual surgery,Computer Animation and Virtual Worlds

当前位置： X-MOL 学术 › Comput. Animat. Virtual Worlds › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Simulation ready anatomy model generation pipeline for virtual surgery
Computer Animation and Virtual Worlds ( IF 0.9 ) Pub Date : 2021-01-26 , DOI: 10.1002/cav.1986
Kun Qian ₁ , Meili Wang ₂ , Yaqing Cui ₃

Affiliation

For surgery simulation application, a high-quality anatomical model is very important not only for rendering but also for physics simulation. CT and MRI reconstructed model has no surface parameterization attribute so texture-based materials cannot be applied for rendering. Anatomical models on the digital market are efficient options but most can only be used for visualization because of the nonmanifold geometric degeneracies. We proposed a simulation ready model generation pipeline that can convert a nonmanifold polygonal surface mesh into a degeneracy free surface mesh (simulation ready state) while preserving the original model's surface parameterization attribute. Our pipeline includes two stages. The first stage is a voxelization and remesh based simulation ready model generation pipeline, which can keep the shape of the original three-dimensional surface model meanwhile eliminate the nonmanifold geometry. The second stage is the main contribution of this article. A cutting-based surface mesh parameterization transfer algorithm is proposed which can transfer the original surface parameterization (UV mapping especially the UV seam) to the simulation ready model. A detailed comparison with existing pipelines is made to show that our pipeline can achieve surface parameterization preservation feature and is more suitable for improving the efficiency of virtual surgery production.

中文翻译：

用于虚拟手术的模拟解剖模型生成管道

对于手术模拟应用来说，高质量的解剖模型不仅对于渲染非常重要，对于物理模拟也非常重要。CT 和 MRI 重建模型没有表面参数化属性，因此无法应用基于纹理的材料进行渲染。数字市场上的解剖模型是有效的选择，但由于非流形几何退化，大多数只能用于可视化。我们提出了一个模拟就绪模型生成管道，可以将非流形多边形表面网格转换为退化自由表面网格（模拟就绪状态）) 同时保留原始模型的表面参数化属性。我们的管道包括两个阶段。第一阶段是基于体素化和重新网格化的模拟就绪模型生成管道，它可以保持原始三维表面模型的形状，同时消除非流形几何。第二阶段是本文的主要贡献。提出了一种基于切割的表面网格参数化传递算法，可以将原始表面参数化（UV映射，尤其是UV接缝）传递到模拟就绪模型。与现有流水线进行详细对比，表明我们的流水线可以实现表面参数化保存功能，更适合提高虚拟手术制作效率。

更新日期：2021-01-26

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11