2026-10-12T10:47:40Z https://www.scidb.cn/oai

10.57760/sciencedb.011vu 2026-09-28T10:46:59Z

2026-09-28 SpaceGrid-3D: Synthetic and Real Point Clouds of Spatial Grid Structures doi:10.57760/sciencedb.011vu en SpaceGrid-3D contains 470 point-cloud scenes with 7,489,543,911 points. The synthetic component pairs clean and clutter scans for 230 structures across 14 topologies, 46 member–joint combinations and five scales. It links point labels and structural instances to member connectivity, controlled geometry and observation records.Real scenes R1–R10 represent ten independent physical structures and provide manually reviewed semantic labels. Coordinates use metres; labels 0, 1 and 2 denote background, node and member. R10 has no node-class ground truth.Four archives—Metadata, Clean, Clutter and Real—share a SpaceGrid-3D root and are extracted into the same parent directory. Paired scans and equivalent geometry groups should remain together in user-defined splits. The data are licensed under CC BY 4.0. Companion code: https://github.com/zyClan/SpaceGrid-3D. spatial grid structures; terrestrial laser scanning; synthetic point clouds; real point clouds; semantic segmentation; structural connectivity Yanzong Zhang Xuelai Li Zhining Tang Chunao Liu Wei Chao Guibo Nie EMBARGO https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank