Point Cloud Input — Dome Sparse Noisy (PLY)
Sparse, noisy scan of the same dome surface (700 points, σ=0.05) — a realistic reconstruction / denoise input to compare against the dense clean cloud.
ply
model/ply
- Format
- ASCII PLY
- Points
- 700
- Role
- sparse noisy scan
- Shape
- dome
- Noise Sigma
- 0.05
- Reference
- mdl-pcd-dome-dense
Binary ply — no in-browser preview. Download it above to open in a compatible application.
Specifications
- Format
- ASCII PLY
- Points
- 700
- Role
- sparse noisy scan
- Shape
- dome
- Noise Sigma
- 0.05
- Reference
- mdl-pcd-dome-dense
What is a .ply file?
PLY (.ply, Polygon/Stanford Triangle Format) is a flexible 3D format storing a list of vertices and faces with arbitrary per-element properties (position, colour, normals, confidence), in ASCII or binary. It is standard for scanned meshes and point clouds.
How to use this file
Use an example .ply file to test mesh/point-cloud parsers (Open3D, MeshLab), per-vertex colour handling, and PLY conversion.
How to use this file for testing
“Point Cloud Input — Dome Sparse Noisy (PLY)” is a deterministic Novus Examples fixture for Point cloud testing, Photogrammetry testing. A dense, noise-free point cloud paired with a sparse, noisy scan of the same surface — a reconstruction / denoise target for point-cloud tooling.
Documented properties for this file: sparse noisy scan · ASCII PLY. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
3D and CAD fixtures carry one small, documented solid or scene. Convert and inspect against the known geometry, units, and structure; format twins let you diff interchange fidelity, and the 3D viewer previews the actual mesh.
Code examples
import trimesh # pip install trimesh
mesh = trimesh.load("dome-sparse-noisy.ply")
print(mesh.bounds, mesh.faces.shape)Related files
- plyPoint Cloud GT — Orb Dense Clean (PLY)Dense, noise-free point cloud sampled on the orb surface — the reconstruction target for scoring a photogrammetry / point-cloud-cleanup tool.
- plyPoint Cloud Input — Orb Sparse Noisy (PLY)Sparse, noisy scan of the same orb surface (700 points, σ=0.05) — a realistic reconstruction / denoise input to compare against the dense clean cloud.
- 3mf3MF — Manufacturing CubeA 10 mm cube as 3MF — the modern OPC-packaged manufacturing format (a ZIP of model XML plus relationships). For testing 3MF readers and slicers.
- binBIN — glTF Buffer CompanionBinary buffer companion for the textured mini glTF (positions, UVs, indices).
- daeDAE — COLLADA CubeA 10 mm cube as COLLADA (.dae) — the XML digital-asset-exchange format used across 3D tools and game engines. For testing COLLADA parsers and conversion.
- dxfDXF — CAD Cube (line geometry)A 10 mm cube drawn as 12 DXF LINE entities — the AutoCAD interchange format, written with ezdxf. For testing DXF parsers and CAD conversion.
Generated by generation/models_ai.py. Free for any use, no attribution required — license.