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Efficient Point Cloud Processing with High-Dimensional Positional Encoding and Non-Local MLPs
arXiv – CS AI|Yanmei Zou, Hongshan Yu, Yaonan Wang, Zhengeng Yang, Xieyuanli Chen, Kailun Yang, Naveed Akhtar|
🤖AI Summary
Researchers developed HPENets, a new suite of MLP networks for point cloud processing that uses High-dimensional Positional Encoding (HPE) and non-local MLPs. The approach delivers significant performance improvements while reducing computational costs by 50-80% compared to existing methods across multiple benchmark datasets.
Key Takeaways
- →HPENets introduces a two-stage abstraction and refinement (ABS-REF) framework that clarifies how MLP-based point cloud processing works.
- →The High-dimensional Positional Encoding (HPE) module explicitly utilizes intrinsic positional information, extending transformer concepts to MLP architectures.
- →Non-local MLPs replace time-consuming local MLP operations, improving efficiency while maintaining effectiveness.
- →HPENet outperforms PointNeXt across four datasets with 50-80% fewer FLOPs, demonstrating superior efficiency-effectiveness balance.
- →The approach is compatible with both MLP-based and transformer-based methods, making it broadly applicable.
#machine-learning#point-cloud#mlp#neural-networks#computer-vision#efficiency#positional-encoding#research
Read Original →via arXiv – CS AI
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