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arXiv 2509.22132cs.CV

基于单一部分点云多视图增强的自监督点云补全

Self-Supervised Point Cloud Completion based on Multi-View Augmentations of Single Partial Point Cloud

Hunan University(湖南大学)

Jingjing Lu, Huilong Pi, Yunchuan Qin, Zhuo Tang, Ruihui Li

AI总结:

本文针对点云补全中监督依赖真值、无监督需完整点云等问题,提出基于单一部分点云多视图增强的自监督方法,并首次引入Mamba提升生成质量,在合成与真实数据集上取得最优结果。

摘要:

点云补全旨在从部分观测中重建完整形状。尽管当前方法已取得显著性能,但仍存在一些局限:监督方法严重依赖真值,由于合成到真实的域差距,限制了其对真实数据集的泛化能力;无监督方法需要完整点云来组成非配对训练数据;弱监督方法需要物体的多视图观测;现有自监督方法由于自监督信号能力有限,常常产生不令人满意的预测。为克服这些挑战,我们提出一种新颖的自监督点云补全方法。我们基于单一部分点云的多视图增强设计了一组新颖的自监督信号。此外,为增强模型的学习能力,我们首次将Mamba引入自监督点云补全任务,促使模型生成质量更好的点云。在合成数据集和真实数据集上的实验表明,我们的方法取得了最先进的结果。

英文摘要:

Point cloud completion aims to reconstruct complete shapes from partial observations. Although current methods have achieved remarkable performance, they still have some limitations: Supervised methods heavily rely on ground truth, which limits their generalization to real-world datasets due to the synthetic-to-real domain gap. Unsupervised methods require complete point clouds to compose unpaired training data, and weakly-supervised methods need multi-view observations of the object. Existing self-supervised methods frequently produce unsatisfactory predictions due to the limited capabilities of their self-supervised signals. To overcome these challenges, we propose a novel self-supervised point cloud completion method. We design a set of novel self-supervised signals based on multi-view augmentations of the single partial point cloud. Additionally, to enhance the model's learning ability, we first incorporate Mamba into self-supervised point cloud completion task, encouraging the model to generate point clouds with better quality. Experiments on synthetic and real-world datasets demonstrate that our method achieves state-of-the-art results.

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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