pointcept2 / README.md
Gofinge's picture
dataset card
a3b5592 verified
|
Raw History Blame Contribute Delete
3.9 kB
metadata
pretty_name: Pointcept2 processed point cloud datasets
license: other
license_name: per-source-dataset-terms
tags:
  - point-cloud
  - 3d
  - scene-understanding
extra_gated_prompt: >-
  This repository redistributes processed versions of third-party 3D datasets.
  Each dataset keeps its original terms of use (linked below). By requesting
  access you confirm that you have accepted the terms of every dataset you
  download from here and that you will use the data for non-commercial research
  only.
extra_gated_fields:
  Name: text
  Affiliation: text
  I have accepted the terms of use of the source datasets I will download: checkbox

Pointcept2 processed point cloud datasets

Indoor scene datasets processed for Pointcept2: one .safetensors file per scene, a dataset.json card per dataset (fields, dtypes, roles, units, classes, provenance) and an index.json manifest (splits, point counts, byte sizes, sha256 of every file). Pointcept2 reads them directly; any safetensors reader can too.

folder source scenes content notes
scannet/ ScanNet v2 1,613 (train 1,201 / val 312 / test 100) coord (m, f32), color (u8), normal (f32), segment20, segment200 (i16, -1 ignore), instance (i32) Pointcept's preprocessing ported bit-identically (same labels and order)
structured3d-full/ Structured3D 21,821 rooms (all splits) coord, color, normal, segment, instance derived version: Pointcept's rooms pre-sampled to one point per 1.5 cm cell
s3dis/ S3DIS (Stanford 2D-3D-S) 272 rooms (Area_1 to Area_6) coord, color, normal, segment (13 classes), instance Pointcept's processed rooms (aligned, with normals), stored as-is
arkitscenes/ ARKitScenes (3DOD meshes) 5,047 scenes (Training / Validation) coord, color, normal Pointcept's processed scenes, stored as-is; no labels
hm3d/ HM3D v0.2 11,493 rooms (train / val) coord, color, normal; segment, instance where HM3D-Sem has them Pointcept's processed rooms, stored as-is
scannetpp/ ScanNet++ v2 956 scenes (train 856 / val 50 / test 50) coord, color, normal, segment, instance Pointcept's processed meshes, full resolution
scannetpp-g0.01/ ScanNet++ v2 956 scenes as scannetpp/ derived version: one point per 1 cm cell, for training

A folder is complete when its index.json is present. Each folder's dataset.json records the exact source, its hashes and the processing.

Tar shards. The hub allows at most 10,000 files in one directory, so a split with more samples is stored as uncompressed tar shards next to the other splits: structured3d-full/train-000.tar, ... and hm3d/train-000.tar, ... (about 4 GB each, samples in index order). Unpack them inside the dataset folder to get the layout index.json lists, then delete the shards:

cd structured3d-full && for f in train-*.tar; do tar -xf "$f" && rm "$f"; done

Every sample's sha256 is in index.json.

Terms of use

The data remain under the terms of their original datasets; this repository grants no additional rights. Read and accept them before use:

Reading a sample

from safetensors.numpy import load_file
scene = load_file("scannet/train/scene0000_00.safetensors")
coord, color = scene["coord"], scene["color"]  # (N, 3) float32 metres, (N, 3) uint8

Citation

Cite the original datasets (ScanNet, Structured3D, ...) and Pointcept.