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Abstract - A Unified Non-Parametric and Interpretable Point Cloud Analysis via t-FCW Graph Representation
We introduce an empowered transposed Fully Connected Weighted (t-FCW) graph representation to embed point clouds into a metric space. While original t-FCW has shown promising results for point cloud classification, the reasons behind its effectiveness and its broader applicability remained unclear. In this work, we analyze the properties that make the empowered and original t-FCW effective and design a network that uses the empowered t-FCW exclusively as feature extractors. From an interpretability perspective, we build memory banks for classification, part segmentation, and semantic segmentation using the empowered t-FCW. Our analysis reveals that the empowered t-FCW inherits robustness from surface descriptors, provides interpretability through dimension-wise relations. These properties enable a highly efficient and interpretable network, which processes the ModelNet40 classification problem in approximately 7 seconds on an NVIDIA RTX A5000 GPU. Importantly, empowered t-FCW can function both as a lightweight standalone baseline and as a complementary plug-in to existing deep models.
一种基于t-FCW图表示的统一非参数化与可解释性点云分析方法 /
A Unified Non-Parametric and Interpretable Point Cloud Analysis via t-FCW Graph Representation
1️⃣ 一句话总结
该论文提出了一种改进的t-FCW图表示方法,用于高效、可解释地分析三维点云,将其作为特征提取器实现分类、部件分割和语义分割,在保持高精度和可解释性的同时,仅需数秒即可完成ModelNet40分类任务,并且既可以作为独立的轻量级基线模型,也可以作为插件增强现有深度学习模型。