class_docstr: Use the farnebeck algorithm for the flow-based motion estimator
class_docstr_tok: ["Use","the","farnebeck","algorithm","for","the","flow-based","motion","estimator"]
code: def __init__(self, flow_scale=256):
      self.flow_scale = flow_scale
      import cv2
  
      self._cv2 = cv2
  
imports: import time
  import logging
  from abc import ABC, abstractmethod
  import numpy
label_desc: Use image node_id 1 to create a new FarneBeckFlowMotionEstimator object from inherited base classes: BaseFlowMotionEstimator with example: obj = FarneBeckFlowMotionEstimator(flow_scale)