Ground removal for point cloud ransac plane fitting (with open3d python code)

Two ways for Point cloud scaling (with open3d python code)

Lidar point cloud projection to bird’s-eye view (with python code)

Calculate the average curvature of each point in the point cloud (with open3d python code)

Calculate the average curvature using the following formula：

E=1+(Fx * * 2/Fz * * 2)
F=Fx * Fy/Fz * * 2
G=1+(Fy * * 2/Fz * * 2)
L=(1/(Fz * * 2 *…

Point cloud computing centroid (with open3d python code)

The centroid position of the point cloud is obtained by adding up the xyz of each point and dividing it by the number of points.

Point cloud voxelization and vis(with open3d python code)

Calculate the roughness of each point in the point cloud (with open3d python code)

Calculate the plane fitted by N points around each point, and then calculate the distance from that point to this plane as the roughness of that point.

Point cloud DBSCAN clustering And obtain the cluster with the highest number of cluster, and delete the other…

Two filtering algorithms for point cloud noise removal (with open3d python code)

Find point cloud 2D edge points (with open3d python code)

Idea details: Project 3D points onto a 2D image, find the edges of the image, and then reverse map to find the corresponding edge points.

 
# coding:utf-8
import open3d as o3d
import numpy as np
import cv2…

Calculate the gradient of each point in the point cloud (with open3d python code)

Start finding the gradient of points by searching for normal vectors and points on the surface

Calculate the Gaussian curvature of each point in the point cloud (with open3d python code)

Start searching for the Gaussian curvature of points by finding the equation for the best fitting surface.

Calculate the verticality of each point in the point cloud to the Z axis (with open3d python code)

Used to calculate the verticality of each point.

This function obtains perpendicularity by searching for surrounding points and then…

Read and write point cloud mesh data and visualize it (with Open3D Python code)

Point cloud mesh surface sampling to make the mesh to point cloud

Calculate the local point cloud maximum height difference for each point in the point cloud (with open3d python code)

Calculate the local maximum z-direction difference for each point in a given 3D point.