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Finding Outliers in a Haystack: Anomaly Detection for Large Pointcloud Scenes

Created by
  • Haebom

Author

Ryan Faulkner, Luke Haub, Simon Ratcliffe, Tat-Jun Chin

Outline

This paper presents a novel approach to open-set segmentation using large-scale point cloud data generated by LiDAR scanning of outdoor scenes. Combining existing research in object defect detection with the strengths of the Mamba architecture (which leverages long-range dependencies and excels at large-scale data scalability), we propose a reconstruction-based open-set segmentation method. This approach not only improves the performance of our own open-set segmentation method but also of existing methods. The Mamba-based architecture demonstrates competitive performance compared to existing voxel-based convolution-based methods. Our proposed approach has potential applications in diverse fields, including robotics, automotive, and land surveillance.

Takeaways, Limitations

Takeaways:
We present a novel reconstruction-based approach that contributes to improving the performance of existing open set partitioning methods.
Proposing an efficient method for processing large-scale point cloud data by utilizing the Mamba architecture.
Successfully applying knowledge from object defect detection research to the open set segmentation problem.
It presents potential applications in various fields such as robotics, automobiles, and land surveillance.
Limitations:
Additional experiments are needed to evaluate the generalization performance of the method presented in this paper.
Lack of robustness assessment for various types of outliers.
There may be a bias towards certain types of outdoor scenes.
Lack of evaluation of real-time processing performance in real environments.
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