code: def is_move(self, array, frame_shape):
      x1, y1, x2, y2 = array
      h, w, _ = frame_shape
  
      if (
          abs(x1 - x2) > w * self.move_scale
          or abs(y1 - y2) > h * self.move_scale
      ):
          return True
      else:
          return False
  
file_path: PaddleDetection/deploy/pipeline/ppvehicle/vehicle_retrograde.py
imports: import numpy
  import math
label_desc: Use image node_id 4 for calling the VehicleRetrogradeRecognizer obj's underlying member method code with example usage: obj.is_move(array, frame_shape) and returns: True, False