code: def convert_angle_axis_to_matrix3(angle_axis):
      """Return a Matrix3 for the angle axis.
      Arguments:
          angle_axis {Point3} -- a rotation in angle axis form.
      """
      matrix, jacobian = cv2.Rodrigues(angle_axis)
      return matrix
  
file_path: ARKitScenes/threedod/benchmark_scripts/utils/rotation.py
imports: import cv2
  import math
  import numpy
label_desc: Use image node_id 5 for calling a global function with example usage: convert_angle_axis_to_matrix3(angle_axis) and returns: matrix