model {
  center_net {
    num_classes: 2
    feature_extractor {
      type: "resnet_v1_50_fpn"
    }
    image_resizer {
      keep_aspect_ratio_resizer {
        min_dimension: 512
        max_dimension: 512
        pad_to_max_dimension: true
      }
    }
    object_detection_task {
      task_loss_weight: 1.0
      offset_loss_weight: 1.0
      scale_loss_weight: 0.1
      localization_loss {
        l1_localization_loss {
        }
      }
    }
    object_center_params {
      object_center_loss_weight: 1.0
      classification_loss {
        penalty_reduced_logistic_focal_loss {
          alpha: 2.0
          beta: 4.0
        }
      }
      min_box_overlap_iou: 0.7
      max_box_predictions: 100
    }
  }
}
train_config {
  batch_size: 10
  data_augmentation_options {
    random_horizontal_flip {
    }
  }
  data_augmentation_options {
    random_crop_image {
      min_aspect_ratio: 0.5
      max_aspect_ratio: 1.7
      random_coef: 0.25
    }
  }
  data_augmentation_options {
    random_adjust_hue {
    }
  }
  data_augmentation_options {
    random_adjust_contrast {
    }
  }
  data_augmentation_options {
    random_adjust_saturation {
    }
  }
  data_augmentation_options {
    random_adjust_brightness {
    }
  }
  data_augmentation_options {
    random_absolute_pad_image {
      max_height_padding: 200
      max_width_padding: 200
      pad_color: 0.0
      pad_color: 0.0
      pad_color: 0.0
    }
  }
  optimizer {
    adam_optimizer {
      learning_rate {
        cosine_decay_learning_rate {
          learning_rate_base: 0.001
          total_steps: 25000
          warmup_learning_rate: 0.0003
          warmup_steps: 2000
        }
      }
      epsilon: 1e-07
    }
    use_moving_average: false
  }
  fine_tune_checkpoint: "/home/ubuntu/assignment2_project/pretrained_models/centernet_resnet50_v1_fpn_512x512_coco17_tpu-8/checkpoint/ckpt-0"
  num_steps: 25000
  max_number_of_boxes: 100
  unpad_groundtruth_tensors: false
  fine_tune_checkpoint_type: "detection"
  use_bfloat16: false
  fine_tune_checkpoint_version: V2
}
train_input_reader {
  label_map_path: "/home/ubuntu/assignment2_project/data/label_map.pbtxt"
  tf_record_input_reader {
    input_path: "/home/ubuntu/assignment2_project/data/train.record"
  }
}
eval_config {
  metrics_set: "coco_detection_metrics"
  use_moving_averages: false
}
eval_input_reader {
  label_map_path: "/home/ubuntu/assignment2_project/data/label_map.pbtxt"
  shuffle: false
  num_epochs: 1
  tf_record_input_reader {
    input_path: "/home/ubuntu/assignment2_project/data/val.record"
  }
}