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arXiv 2006.04307cs.CV
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我们是否渴望获得用于语义分割的3D LiDAR数据?调查与实验研究

Are We Hungry for 3D LiDAR Data for Semantic Segmentation? A Survey and Experimental Study

Peking University(北京大学)

Biao Gao, Yancheng Pan, Chengkun Li, Sibo Geng, Huijing Zhao

摘要:

3D语义分割是机器人和自动驾驶应用的基本任务。最近的工作一直集中在使用深度学习技术,而开发精细注释的3D LiDAR数据集是非常劳动密集型的,需要专业技能。由于数据集不足而导致的性能限制被称为数据饥饿问题。本研究针对“我们是否渴望获得用于语义分割的3D LiDAR数据”这一问题进行了全面的调查和实验研究。研究分三个层次进行。首先,对主要的3D LiDAR数据集进行了广泛的回顾,然后对三个代表性数据集进行了统计分析,以深入了解数据集的大小和多样性,这是学习深度模型的关键因素。其次,对最先进的3D语义分割进行了系统的回顾,然后对三种代表性的深度学习方法进行了实验和交叉检查,以了解数据集的大小和多样性如何影响深度模型的性能。最后,从方法论和数据集的角度对现有的解决数据饥饿问题的努力进行了系统的调查,然后对剩余问题和开放问题进行了深入的讨论。据我们所知,这是第一次使用深度学习技术分析3D语义分割的数据饥饿问题,这些技术在文献综述,统计分析,以及跨数据集和跨算法实验。我们分享调查结果和讨论,这可能会导致未来工作的潜在主题。

英文摘要:

3D semantic segmentation is a fundamental task for robotic and autonomous driving applications. Recent works have been focused on using deep learning techniques, whereas developing fine-annotated 3D LiDAR datasets is extremely labor intensive and requires professional skills. The performance limitation caused by insufficient datasets is called data hunger problem. This research provides a comprehensive survey and experimental study on the question: are we hungry for 3D LiDAR data for semantic segmentation? The studies are conducted at three levels. First, a broad review to the main 3D LiDAR datasets is conducted, followed by a statistical analysis on three representative datasets to gain an in-depth view on the datasets' size and diversity, which are the critical factors in learning deep models. Second, a systematic review to the state-of-the-art 3D semantic segmentation is conducted, followed by experiments and cross examinations of three representative deep learning methods to find out how the size and diversity of the datasets affect deep models' performance. Finally, a systematic survey to the existing efforts to solve the data hunger problem is conducted on both methodological and dataset's viewpoints, followed by an insightful discussion of remaining problems and open questions To the best of our knowledge, this is the first work to analyze the data hunger problem for 3D semantic segmentation using deep learning techniques that are addressed in the literature review, statistical analysis, and cross-dataset and cross-algorithm experiments. We share findings and discussions, which may lead to potential topics in future works.

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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