D-FRAME:用于复杂的CAD模型的基于方向字段的线框提取
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概括
本研究介绍了D-FRAME,这是一种从3D CAD模型中提取线框的新方法. D-FRAME有效地处理杂和复杂的数据,改进了线框提取和CAD模型重建.
科学领域:
- 计算机图形 计算机图形
- 几何建模 几何建模
背景情况:
- 从CAD模型的点云数据中提取线框是具有挑战性的,因为数据不完美 (噪音,稀疏性,缺乏方向) 和复杂的几何形状,密集,近距离的尖端.
- 现有的方法在不完美的点云数据上准确地表示和重建CAD模型方面存在固有的困难.
研究的目的:
- 提出D-FRAME,这是一个新的多阶段框架,用于从CAD模型的点云数据中进行可靠的线框提取.
- 为了提高边缘检测质量,连接性和线框提取中的精度.
- 通过将提取的线框与原始点云集成,实现CAD模型的高度忠实重建.
主要方法:
- 开发了一种名为D-FRAME的多阶段线框提取框架.
- 整合了一个新的方向场,以提高边缘检测质量和连接性.
- 实施了针对稀疏或噪音较高的边缘点的精细化策略,以及用于强大的电线框架提取的粗细连接模块.
- 使用受限制的沃罗诺伊图 (RVD) 与提取的线框和原始点云一起用于重建.
主要成果:
- D-FRAME有效地管理点云数据中的噪声,稀疏性和复杂几何形状.
- 拟议的方向场增强了边缘精度和连接性,减轻了错误分类的点.
- 该框架产生高保真性线框,并实现高保真性CAD模型的重建.
- 在合成和现实数据集上的实验结果验证了D-FRAME的有效性.
结论:
- D-FRAME在从以点云表示的CAD模型中提取线框方面取得了重大进展.
- 该框架在处理数据缺陷和几何复杂性方面表现出卓越的性能.
- D-FRAME可实现高保真性线框提取和准确的CAD模型重建.
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