PCL:实现提取圆柱体的中轴线
以下是使用Python和PCL库提取圆柱体中轴线的完整源码:
python
import pcl
import numpy as np
def extract_cylinder_axis(point_cloud, radius, distance_threshold):
cloud = pcl.PointCloud()
pcl.save(point_cloud, "input_cloud.pcd")
pcl.load("input_cloud.pcd", cloud)
# 创建一个KD树
tree = cloud.make_kdtree()
# 使用半径搜索圆柱体底部圆的点
bottom_points = []
for i in range(len(cloud)):
if cloud[i][2] == np.min(cloud[:, 2]):
bottom_points.append([cloud[i][0], cloud[i][1], cloud[i][2]])
# 使用圆柱体底部圆的点作为种子点提取圆柱体中轴线
indices = []
for point in bottom_points:
index, _ = tree.nearest_k_search_for_point(point, 1)
indices.append(index[0])
# 使用半径和距离阈值提取圆柱体中轴线
cylinder_axis = pcl.PointCloud()
for index in indic