Point-GN: A Non-Parametric Network Using Gaussian Positional Encoding for Point Cloud Classification

• URL: http://arxiv.org/abs/2412.03056v2
• Date: Sat, 07 Dec 2024 05:07:59 GMT
• Title: Point-GN: A Non-Parametric Network Using Gaussian Positional Encoding for Point Cloud Classification
• Authors: Marzieh Mohammadi, Amir Salarpour,
• Abstract summary: Point-GN is a novel non-parametric network for efficient and accurate 3D point cloud classification. We evaluate Point-GN on two benchmark datasets, ModelNet40 and ScanObjectNN, achieving classification accuracies of 85.29% and 85.89%, respectively.
• Score: 0.0
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• Abstract: This paper introduces Point-GN, a novel non-parametric network for efficient and accurate 3D point cloud classification. Unlike conventional deep learning models that rely on a large number of trainable parameters, Point-GN leverages non-learnable components-specifically, Farthest Point Sampling (FPS), k-Nearest Neighbors (k-NN), and Gaussian Positional Encoding (GPE)-to extract both local and global geometric features. This design eliminates the need for additional training while maintaining high performance, making Point-GN particularly suited for real-time, resource-constrained applications. We evaluate Point-GN on two benchmark datasets, ModelNet40 and ScanObjectNN, achieving classification accuracies of 85.29% and 85.89%, respectively, while significantly reducing computational complexity. Point-GN outperforms existing non-parametric methods and matches the performance of fully trained models, all with zero learnable parameters. Our results demonstrate that Point-GN is a promising solution for 3D point cloud classification in practical, real-time environments.

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