Scan2CAD

Scan2CAD 是一个对齐数据集，基于 1506 个 ScanNet 扫描，在来自 ShapeNet 的 14225 个（3049 个唯一）CAD 模型及其扫描中的对应对象之间具有 97607 个带注释的关键点对。前 3 个带注释的模型类是椅子、桌子和橱柜，它们是由于 ScanNet 中室内场景的性质而出现的。每个场景对齐的对象数量从 1 到 40 不等，平均为 9.3。此外，Scan2CAD 数据集中使用的所有 ShapeNet CAD 模型都使用其旋转对称性进行注释：围绕对象的规范轴无、2 倍、4 倍或无限旋转对称。

Scan2CAD is an alignment dataset based on 1506 ScanNet scans, featuring 97,607 annotated keypoint pairs between 14,225 CAD models (3,049 unique ones) from ShapeNet and their corresponding objects in the scans. The top three annotated model classes are chairs, tables, and cabinets, which arise due to the nature of indoor scenes in ScanNet. The number of aligned objects per scene ranges from 1 to 40, with an average of 9.3. Additionally, all ShapeNet CAD models used in the Scan2CAD dataset are annotated with their rotational symmetries: no rotational symmetry, 2-fold, 4-fold, or infinite rotational symmetry around the object's canonical axis.