code: def get_bbox_iou(b1, b2):
      h_iou = get_segments_iou(b1[:2], b2[:2])
      w_iou = get_segments_iou(b1[2:4], b2[2:4])
      return h_iou * w_iou
  
file_path: PaddleSeg/EISeg/eiseg/util/misc.py
imports: import paddle
  import numpy
  import pickle
label_desc: Use image node_id 6 for calling a global function with example usage: get_bbox_iou(b1, b2) and returns: unknown