FPN网络训练报错PaddingFIFOQueue '_1_get_batch/batch/padding_fifo_queue' is closed and has insufficient elements (requested 1, current size 0)

https://github.com/DetectionTeamUCAS/FPN_Tensorflow
按说明设置自己的训练集后，进入tool/运行train.py后报错：

PaddingFIFOQueue '_1_get_batch/batch/padding_fifo_queue' is closed and has insufficient elements (requested 1, current size 0)

查了一下，应该是xml文件中box坐标范围导致的。修改data/io/convert_data/io/convert_to_tfrecord.py中line68为

  gtbox_label = np.array(box_list, dtype=np.int32)  # [x1, y1. x2, y2, label]

  xmin, ymin, xmax, ymax, label = gtbox_label[:, 0], gtbox_label[:, 1], gtbox_label[:, 2],\
      gtbox_label[:, 3], gtbox_label[:, 4]

  xmin = np.where(xmin <= 0, 1, xmin)
  ymin = np.where(ymin <= 0, 1, ymin)
  xmax = np.where(xmax >= img_width, img_width-1, xmax)
  ymax = np.where(ymax >= img_height, img_height-1, ymax)

  # [ymin, xmin, ymax, xmax, label]
  gtbox_label = np.transpose(np.stack([ymin, xmin, ymax, xmax, label], axis=0))

即可。