深点云端边缘重建通过表面补丁细分
IEEE transactions on visualization and computer graphics
|March 3, 2025
概括
本研究介绍了一种新的两阶段框架,用于从点云中重建3D线框. 通过细分表面贴片,它精确地适合边缘和检测角落,即使在稀疏的数据中也提高了准确性.
科学领域:
- 计算机图形 计算机图形
- 几何建模 几何建模
- 机器学习 机器学习
背景情况:
- 从点云进行参数边缘重建对于3D建模至关重要.
- 目前的方法与稀疏和不准确的样本边缘点作斗争,导致安装错误.
- 现有的深度学习方法往往忽略了非边缘区域,限制了重建的完整性.
研究的目的:
- 从点云数据开发一个强大的框架,用于精确和完整的参数边缘重建.
- 通过利用细分的表面贴片的上下文信息来克服稀疏边缘点的局限性.
- 为了能够准确地检测角落和重建拓连接的3D线框模型.
主要方法:
- 提出了一个新的两阶段框架,利用表面补丁细分.
- 开发PCER-Net (点云边缘重建网络),用于同时进行表面补丁细分,边缘点检测和正常预测.
- 实现了一个联合优化模块,用于使用网络输出和几何优化重建完整的3D线框.
主要成果:
- 分段补丁使准确的参数边缘配件成为可能,即使有不均分布的点.
- 从细分的补丁中自然检测到角,有助于完成线框重建.
- 与现有技术相比,拟议的方法在重建精确和完整的3D线框方面表现出卓越的性能.
结论:
- 利用邻近的表面补丁显著提高了参数边缘重建的准确性和完整性.
- 拟议的两阶段框架有效地解决了稀疏和杂的点云数据所带来的挑战.
- 开发的方法提供了一个强大的解决方案,用于生成高质量的3D线框模型,由一个新的多功能数据集支持.
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