最小斜包围盒(Oriented Bounding Box,OBB)在Python中的实现 引言 在计算机图形学和计算几何中,包围盒是一种常用的几何形状,用于简化对物体的碰撞检测、空间划分和其他几何运算。其中,最小斜包围盒(OBB)被认为是一种非常有效的包围盒,它能够以最小的空间包围复杂的形状,而不仅仅是使用轴对齐的包围盒(AABB)。本文将...
AI检测代码解析 defcompute_oriented_bounding_box(points):# 中心化点云center=np.mean(points,axis=0)# 计算点云的中心centered_points=points-center# 中心化处理# 计算协方差矩阵cov_matrix=np.cov(centered_points,rowvar=False)# 计算协方差矩阵eigenvalues,eigenvectors=np.linalg.eig(cov_matrix)# 特征值分解...
#画个框玩玩 aabb = pcd.get_axis_aligned_bounding_box() aabb.color = (1, 0, 0) obb = pcd.get_oriented_bounding_box() obb.color = (0, 1, 0) #knot_data = o3d.data.KnotMesh() #mesh = o3d.io.read_triangle_mesh("./face.ply") #print(mesh) #o3d.io.write_triangle_mesh("c...
("bunny.pcd") print(pcd) print("->正在计算点云轴向最小包围盒...") aabb = pcd.get_axis_aligned_bounding_box() aabb.color = (1, 0, 0) print("->正在计算点云最小包围盒...") obb = pcd.get_oriented_bounding_box() obb.color = (0, 1, 0) o3d.visualization.draw_geometries([...
Knowing about object-oriented programming principles and recursion will enable you to take full advantage of Python’s expressive syntax to write clean code that reads almost like math formulas. To understand the algorithmic details of making fractals, you should also be comfortable with complex ...
1#graphics.py2"""Simple object oriented graphics library3The library is designed to make it very easy for novice programmers to4experiment with computer graphics in an object oriented fashion. It is5written by John Zelle for use with the book "Python Programming: An6Introduction to Computer Scie...
elif feature == 'hog': # histogram of oriented gradients block_size = (small_size[0] / 2, small_size[1] / 2) block_stride = (small_size[0] / 4, small_size[1] / 4) cell_size = block_stride num_bins = 9 hog = cv2.HOGDescriptor(small_size, block_size, block_stride, cell_...
Exterior rings are oriented clockwise, while holes are oriented counter-clockwise. Rings can touch at a vertex or self-touch at a vertex, but there should be no other intersections. polygon1 = Polygon({'spatialReference': {'latestWkid': 4326}, 'rings': [[[-97.06587202923951, 32.75656343500563...
Histogram of Oriented Gradients Image Recognition and Object Detection : Part 1 Head Pose Estimation using OpenCV and Dlib Code Live CV : A Computer Vision Coding Application Approximate Focal Length for Webcams and Cell Phone Cameras Configuring Qt for OpenCV on OSX Code Rotation Matrix To ...
boxes = result.boxes # Boxes object for bounding box outputs masks = result.masks # Masks object for segmentation masks outputs keypoints = result.keypoints # Keypoints object for pose outputs probs = result.probs # Probs object for classification outputs obb = result.obb # Oriented boxes o...