importopen3daso3dimportnumpyasnpdefpca_compute(data,sort=True):#1、主成分分析average_data=np.mean(data,axis=0)# 求每一列的平均值,即求各个特征的平均值decentration_matrix=data-average_data# 去中心化矩阵H=np.dot(decentration_matrix.T,decentration_matrix)# 求协方差矩阵 #协方差是衡量两个变量关系...
bool computePointNormal (const pcl::PointCloud< PointInT > &cloud, const std::vector< int > &indices, float &nx, float &ny, float &nz, float &curvature) // 给定cloud和indices指定点集,通过最小二乘拟合出对应点平面,nx, ny, nz来存储平面参数,curvature测度点集对应曲面的曲率。 virtual void ...
main__":pcd=load_point_cloud('path/to/your/point_cloud.ply')normals=compute_normals(pcd)curvature=compute_curvature(pcd)visualize_curvature(pcd,curvature) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. ...
method of builtins.PyCapsule instance compute_fpfh_feature(input: open3d.open3d.PointCloud, search_param: open3d.open3d.KDTreeSearchParam) -> open3d.open3d.Feature Function to compute FPFH feature for a point cloud compute_point_cloud_mahalanobis_distance(...) method of builtins.PyCapsule insta...
Compute Features - Getting the Memory Problem under Control CFD model: lattice Boltzmann method (LBM) streaming (part 2/2) f0temp(x,t) = f0(x, t)fitemp(x,t) = f(t%2 ? i : (i%2 ? i+1 : i-1))(i%2 ? x : x-ei, t) for i∈ [1, q-1] collision ρ(x,t) = (...
'trimesh.curvature', 'trimesh.comparison', 'trimesh.registration', 'trimesh.decomposition', 'trimesh.io.wavefront', 'trimesh.io.urdf', 'trimesh.io.stl', 'trimesh.io.ply', 'trimesh.io.export', 'trimesh.scene.camera', 'trimesh.rendering', 'trimesh.io.gltf', 'trimesh.scene.transfo...
(e.g., SI, 3DSC, and FPFH) encodes the statistics of local geometric information, such as normal, curvature, and included angle, of surface points in the feature histogram [16,20]. However, this approach is inadequate for accurately describing the spatial distribution of the local surface ...
# Compute curvature increment set dK [expr $maxK/$numIncr] # Use displacement control at node 2 for section analysis integrator DisplacementControl 2 3 $dK # Do the section analysis analyze $numIncr } Results When you run this script, you should see the following printed to the screen: In...
(3D) perception, positioning and tracking of targets. It realizes the 3D panoramic perception of the outside world through the rotation of the eyeball and neck, and realizes the perception of near or far targets by adjusting the curvature of the lens [3]. However, its motion structure is ...
Note that in contrast to prior work, we compute the IoU wrt. the high- resolution mesh and not a coarse voxel representation. All methods apart from AtlasNet [26] are evaluated on the test split by Choy et al. [9]. Since AtlasNet uses a pretrained model,...