arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2203.05940cs.CV
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PD-Flow:一种带规范化流的点云去噪框架

PD-Flow: A Point Cloud Denoising Framework with Normalizing Flows

South China University of Technology(华南理工大学);Tsinghua University(清华大学)

Aihua Mao, Zihui Du, Yu-Hui Wen, Jun Xuan, Yong-Jin Liu

摘要:

点云去噪的目的是从被噪声和离群值破坏的原始观测中恢复干净的点云,同时保留细粒度的细节。我们提出了一种新的基于深度学习的去噪模型,该模型结合了归一化流和噪声解纠缠技术,以实现高去噪精度。与现有的工程,提取点云的特征逐点校正,我们制定了去噪过程的角度分布学习和功能解纠缠。通过将噪声点云视为干净点和噪声的联合分布,可以通过将噪声对应物从潜在点表示中分离出来来获得去噪结果,并且通过归一化流来建模欧氏空间和潜在空间之间的映射。我们在合成的3D模型和具有各种噪声设置的真实世界数据集上评估我们的方法。定性和定量的结果表明,我们的方法优于以前最先进的基于深度学习的方法。

英文摘要:

Point cloud denoising aims to restore clean point clouds from raw observations corrupted by noise and outliers while preserving the fine-grained details. We present a novel deep learning-based denoising model, that incorporates normalizing flows and noise disentanglement techniques to achieve high denoising accuracy. Unlike existing works that extract features of point clouds for point-wise correction, we formulate the denoising process from the perspective of distribution learning and feature disentanglement. By considering noisy point clouds as a joint distribution of clean points and noise, the denoised results can be derived from disentangling the noise counterpart from latent point representation, and the mapping between Euclidean and latent spaces is modeled by normalizing flows. We evaluate our method on synthesized 3D models and real-world datasets with various noise settings. Qualitative and quantitative results show that our method outperforms previous state-of-the-art deep learning-based approaches.

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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