We introduce a large-scale 3D shape understanding benchmark using data and annotation from ShapeNet 3D object database. The benchmark consists of two tasks: part-level segmentation of 3D shapes and 3D reconstruction from single view images. Ten teams have participated in the challenge and the best performing teams have outperformed state-of-the-art approaches on both tasks. A few novel deep learning architectures have been proposed on various 3D representations on both tasks. We report the techniques used by each team and the corresponding performances. In addition, we summarize the major discoveries from the reported results and possible trends for the future work in the field.

用 ShapeNet 数据库的数据和注释介绍了一个大规模的 3D 形状理解基准测试。以部分级别分割 3D 形状和从单个视图图像重建 3D 形状为任务，其中10个团队参加了挑战，并且最佳表现团队在两个任务上均优于现有技术。各种 3D 建模方法都被用于这两个任务中，并提出了一些新的深度学习架构。我们总结了每个团队使用的技术和相应的表现，并总结了来自报告结果的主要发现和未来工作的可能趋势。

从ShapeNet Core55进行大规模3D形状重建和分割