Find 3D Normals and Curvature
Estimates the normals and curvature for a sparse 3D point cloud, by using the n nearest neighbours to approximate a plane at each point.
-Able to process point clouds of over 1 million points in under 60 seconds.
-Robust to flipped normal direction
-Uses a nearest neighbour search (as opposed to a range search) to minimize parameter tuning and allow handling of point clouds with highly non-uniform density.
Cite As
Zachary Taylor (2024). Find 3D Normals and Curvature (https://www.mathworks.com/matlabcentral/fileexchange/48111-find-3d-normals-and-curvature), MATLAB Central File Exchange. Retrieved .
MATLAB Release Compatibility
Platform Compatibility
Windows macOS LinuxCategories
- Image Processing and Computer Vision > Computer Vision Toolbox > Point Cloud Processing >
- MATLAB > Mathematics > Computational Geometry > Spatial Search >
- Sciences > Mathematics > Geometry > Computational Geometry >
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Version | Published | Release Notes | |
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1.4.0.0 | Zip appeared empty, re-uploaded to fix |
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1.3.0.0 | Not using eig gives inaccurate results under some conditions, reverting to previous version till I can track down and fix the issue |
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1.2.0.0 | Abandoned Matlabs eig function in favour of calculating eigenvalues and vectors analytically. Allowed for vectorization of the code and a speed improvement of at least 2x.
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1.1.0.0 | added demo file |
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1.0.0.0 |