arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2205.02413cs.CV
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基于点云数据的曲面重构:综述与基准

Surface Reconstruction from Point Clouds: A Survey and a Benchmark

South China University of Technology(华南理工大学);University of Macau(澳门大学)

Zhangjin Huang, Yuxin Wen, Zihao Wang, Jinjuan Ren, Kui Jia

摘要:

从二维流形的原始离散点云数据重建连续曲面是一个长期存在的问题。该问题在技术上是不适定的,并且考虑到通过实际深度扫描获得的点云中会出现各种传感缺陷,变得更加困难。在文献中,已经提出了一套丰富的方法,并对现有的方法进行了评论。然而,现有的审查缺乏一个共同基准的彻底调查。本文旨在回顾和基准现有的方法在新时代的深度学习表面重建。为此,我们贡献了一个大规模的基准测试数据集,包括合成和真实扫描数据;基准测试包括对象和场景级表面,并考虑到在实际深度扫描中经常遇到的各种传感缺陷。我们通过比较现有的方法在构建的基准进行彻底的实证研究,并特别注意现有的方法对各种扫描缺陷的鲁棒性,我们还研究了不同的方法如何概括重建复杂的表面形状。我们的研究有助于确定不同方法工作的最佳条件,并提出一些实证研究结果。例如,虽然深度学习方法越来越受欢迎,但我们的系统研究表明,令人惊讶的是,一些经典方法在鲁棒性和泛化方面表现得更好;我们的研究还表明,所有现有的表面重建方法仍然没有解决多视图扫描点集未对齐,表面点缺失和点离群值的实际挑战。我们希望基准和我们的研究将是有价值的从业者和指导新的创新,在未来的研究。

英文摘要:

Reconstruction of a continuous surface of two-dimensional manifold from its raw, discrete point cloud observation is a long-standing problem. The problem is technically ill-posed, and becomes more difficult considering that various sensing imperfections would appear in the point clouds obtained by practical depth scanning. In literature, a rich set of methods has been proposed, and reviews of existing methods are also provided. However, existing reviews are short of thorough investigations on a common benchmark. The present paper aims to review and benchmark existing methods in the new era of deep learning surface reconstruction. To this end, we contribute a large-scale benchmarking dataset consisting of both synthetic and real-scanned data; the benchmark includes object- and scene-level surfaces and takes into account various sensing imperfections that are commonly encountered in practical depth scanning. We conduct thorough empirical studies by comparing existing methods on the constructed benchmark, and pay special attention on robustness of existing methods against various scanning imperfections; we also study how different methods generalize in terms of reconstructing complex surface shapes. Our studies help identify the best conditions under which different methods work, and suggest some empirical findings. For example, while deep learning methods are increasingly popular, our systematic studies suggest that, surprisingly, a few classical methods perform even better in terms of both robustness and generalization; our studies also suggest that the practical challenges of misalignment of point sets from multi-view scanning, missing of surface points, and point outliers remain unsolved by all the existing surface reconstruction methods. We expect that the benchmark and our studies would be valuable both for practitioners and as a guidance for new innovations in future research.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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