In recent years, point cloud representation has become one of the research hotspots in the field of computer vision, and has been widely used in many fields, such as autonomous driving, virtual reality, robotics, etc. Although deep learning techniques have achieved great success in processing regular structured 2D grid image data, there are still great challenges in processing irregular, unstructured point cloud data. Point cloud classification is the basis of point cloud analysis, and many deep learning-based methods have been widely used in this task. Therefore, the purpose of this paper is to provide researchers in this field with the latest research progress and future trends. First, we introduce point cloud acquisition, characteristics, and challenges. Second, we review 3D data representations, storage formats, and commonly used datasets for point cloud classification. We then summarize deep learning-based methods for point cloud classification and complement recent research work. Next, we compare and analyze the performance of the main methods. Finally, we discuss some challenges and future directions for point cloud classification.

该论文介绍了点云的获取、特点和挑战，回顾了点云分类的3D数据表示、存储格式和常用数据集，总结了基于深度学习的点云分类方法，并对最新研究进展进行了补充，对主要方法的性能进行了比较和分析，并讨论了点云分类面临的一些挑战和未来方向。

基于深度学习的三维点云分类：系统调查与展望