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arXiv 1904.04427cs.CVeess.SP
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基于深度神经网络局部表面估计的三维点云去噪

3D Point Cloud Denoising via Deep Neural Network based Local Surface Estimation

Carnegie Mellon University(卡内基梅隆大学);Mitsubishi Electric Research Laboratories(三菱电机研究实验室)

Chaojing Duan, Siheng Chen, Jelena Kovacevic

摘要:

我们提出了一种基于神经网络的3D点云去噪架构,称为神经投影去噪(NPD)。在我们以前的工作中,我们提出了一个两阶段的去噪算法,首先估计参考平面,然后将噪声点投影到估计的参考平面。由于估计的参考平面不可避免地含有噪声,因此应用多投影来稳定去噪性能。NPD算法使用神经网络来估计噪声点云中的点的参考平面。通过更准确地估计参考平面,我们能够仅用一次投影实现更好的去噪性能。据我们所知,NPD是第一个使用深度学习技术对3D点云进行降噪的工作。为了进行实验,我们从ShapeNet中的3D数据中采样40000个点云来训练网络,并从ModelNet10中的3D数据中采样350个点云进行测试。实验结果表明,该算法能够有效地估计噪声点云中点的法向量。与五种竞争方法相比,该算法具有更好的去噪性能,产生更小的方差。

英文摘要:

We present a neural-network-based architecture for 3D point cloud denoising called neural projection denoising (NPD). In our previous work, we proposed a two-stage denoising algorithm, which first estimates reference planes and follows by projecting noisy points to estimated reference planes. Since the estimated reference planes are inevitably noisy, multi-projection is applied to stabilize the denoising performance. NPD algorithm uses a neural network to estimate reference planes for points in noisy point clouds. With more accurate estimations of reference planes, we are able to achieve better denoising performances with only one-time projection. To the best of our knowledge, NPD is the first work to denoise 3D point clouds with deep learning techniques. To conduct the experiments, we sample 40000 point clouds from the 3D data in ShapeNet to train a network and sample 350 point clouds from the 3D data in ModelNet10 to test. Experimental results show that our algorithm can estimate normal vectors of points in noisy point clouds. Comparing to five competitive methods, the proposed algorithm achieves better denoising performance and produces much smaller variances.

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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