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PartObjaverse-Tiny.md

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PartObjaverse-Tiny

PartObjaverse-Tiny is a 3D part segmentation dataset which provides detailed semantic-level and instance-level part annotations for 200 complex 3D objects from Objaverse. Following GObjaverse, we divide these 200 objects into 8 categories: Human-Shape (29), Animals (23), Daily-Used (25), Buildings&&Outdoor (25), Transportations (38), Plants (18), Food (8) and Electronics (34).

PartObjaverse-Tiny can be downloaded here.

File Description

  • PartObjaverse-Tiny_mesh: 200 Meshes in glb format, named with uids.
  • PartObjaverse-Tiny_semantic.json: Label set for each mesh.
  • PartObjaverse-Tiny_semantic_gt: The ground truth of the semantic segmentation task. Each GT number corresponds in order to each label in the label set.
  • PartObjaverse-Tiny_instance_gt: The ground truth of the instance segmentation task. Each GT number corresponds to an instance and does not represent semantics.

Usage

pip install trimesh

mesh = trimesh.load(${MESH_PATH})
if isinstance(mesh, trimesh.Scene):
    mesh = mesh.dump(concatenate=True)
mesh_faces = mesh.faces()

The face order in GT is consistent with the order of mesh_faces.

Evaluation codes are in SAMPart3D/PartObjaverse-Tiny/eval/.