P2G-Spine: A Vertebral Point Cloud Dataset

Each point cloud is stored as a plain text (TXT) file, with each line representing a single point and containing six floating-point numbers: the first three are spatial coordinates (x, y, z), and the last three are normal vector components (nx, ny, nz). Data generation pipeline: vertebral segmentation from CT (TotalSegmentator) → 3D surface reconstruction → uniform sampling to generate point clouds.

All vertebrae have undergone manual quality control to ensure surface integrity and anatomical accuracy. The point clouds are stored in standard formats and can be directly used for pre-training of point cloud deep learning models, geometric feature learning, or self-supervised learning tasks.This dataset is part of the P2G (Point to Guide) project, aiming to provide foundational data resources for research on intelligent navigation in spinal surgery and patient-specific guide design.