3D LiDAR異常セグメンテーションのための分布外物体識別学習
Learning to Identify Out-of-Distribution Objects for 3D LiDAR Anomaly Segmentation
既知クラスの特徴分布をモデル化して異常サンプルを制約する、特徴空間で直接動作する新しい3D LiDAR異常セグメンテーション手法を提案し、実世界と合成データを組み合わせた新データセットも導入した。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
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6. 次に読むべき論文は?
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著者: Simone Mosco, Daniel Fusaro, Alberto Pretto
分類: cs.CV, cs.RO
原文アブストラクト
Understanding the surrounding environment is fundamental in autonomous driving and robotic perception. Distinguishing between known classes and previously unseen objects is crucial in real-world environments, as done in Anomaly Segmentation. However, research in the 3D field remains limited, with most existing approaches applying post-processing techniques from 2D vision. To cover this lack, we propose a new efficient approach that directly operates in the feature space, modeling the feature distribution of inlier classes to constrain anomalous samples. Moreover, the only publicly available 3D LiDAR anomaly segmentation dataset contains simple scenarios, with few anomaly instances, and exhibits a severe domain gap due to its sensor resolution. To bridge this gap, we introduce a set of mixed real-synthetic datasets for 3D LiDAR anomaly segmentation, built upon established semantic segmentation benchmarks, with multiple out-of-distribution objects and diverse, complex environments. Extensive experiments demonstrate that our approach achieves state-of-the-art and competitive results on the existing real-world dataset and the newly introduced mixed datasets, respectively, validating the effectiveness of our method and the utility of the proposed datasets. Code and datasets are available at https://simom0.github.io/lido-page/.
