import osimport xml.etree.ElementTree as ETimport cv2import numpy as npfrom matplotlib import pyplot as pltann=os.listdir('./Annotations')for _ in ann:path=os.path.join('./Annotations',_)tree=ET.
机器人学基础-旋转变换 空间旋转矩阵中有九个元素,但是这九个元素满足六个约束方程,只有三个独立变量 ABX = [ AXB AYB AYB ] = [ R 11 R 12 R 13 R 21 R 22 R 23 R 31 R 32 R 33 ] \begin{bmatrix}R11 & R12 & R13 \\ R21 & R22&R23\\R31&R32&R33\\ \end{bmatri