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arXiv 2203.15469cs.CVcs.LG
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基于Permutohedral格的时态语义分割抽象流程

Abstract Flow for Temporal Semantic Segmentation on the Permutohedral Lattice

University of Bonn(波恩大学)

Peer Schütt, Radu Alexandru Rosu, Sven Behnke

摘要:

语义分割是自主智能体所需的核心能力,因为能够区分场景的哪些部分属于哪个对象类对于导航和与环境的交互至关重要。仅使用一个时间步长的数据的方法不能区分移动对象,也不能从时间集成中受益。在这项工作中,我们扩展了骨干LatticeNet处理时间点云数据。此外,我们从光流方法中获得灵感,并提出了一个名为抽象流的新模块,该模块允许网络匹配具有相似抽象特征的场景部分,并在时间上收集信息。我们在SemanticKITTI数据集上获得了最先进的结果,该数据集包含来自真实城市环境的激光雷达扫描。我们在https://github.com/AIS-Bonn/temporal_latticenet上分享了TemporalLatticeNet的PyTorch实现。

英文摘要:

Semantic segmentation is a core ability required by autonomous agents, as being able to distinguish which parts of the scene belong to which object class is crucial for navigation and interaction with the environment. Approaches which use only one time-step of data cannot distinguish between moving objects nor can they benefit from temporal integration. In this work, we extend a backbone LatticeNet to process temporal point cloud data. Additionally, we take inspiration from optical flow methods and propose a new module called Abstract Flow which allows the network to match parts of the scene with similar abstract features and gather the information temporally. We obtain state-of-the-art results on the SemanticKITTI dataset that contains LiDAR scans from real urban environments. We share the PyTorch implementation of TemporalLatticeNet at https://github.com/AIS-Bonn/temporal_latticenet .

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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