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建筑物二元分类案例

• 参考
  • 源码notebook，https://github.com/databooks/databook/tree/master/gis/iobjectspy10
  • iObjects 10使用，使用SuperMap iObjects for python 10.0

# !/usr/bin/env python3
# coding=utf-8
"""
example binary
"""
import os
import time

from iobjectspy.ml.vision import Trainer, Inference

设置输入数据路径

curr_dir = ''
data_dir = os.path.join(curr_dir, '..','..','example_data')
dom_path = os.path.join(data_dir, 'inference','building_infer.tif')
print(dom_path)

../../example_data/inference/building_infer.tif

from PIL import Image
img = Image.open(dom_path)
img

设置输出数据路径

out_dir = os.path.join(curr_dir, '..','..','out')
if not os.path.exists(out_dir):
    os.makedirs(out_dir)

def example_create_train_data():
    pass

二元分类模型训练

"""
train the model
"""

print('train start')

train_data_path = os.path.join(data_dir, 'training', 'binary_cls_train_data', 'train_data')
config = os.path.join(curr_dir, '..','..','trainer_config','binary_cls_train_config.sdt')
output_model_path = out_dir
backbone_weight_path = os.path.join(curr_dir, '..','..','backbone','efficientnet-b3_imagenet_1000_notop.h5')

start_time = time.time()

Trainer(train_data_path=train_data_path, config=config, epoch=1, batch_size=1, lr=0.0001,
        output_model_path=output_model_path,
        output_model_name='example_binary_cls',
        backbone_name='efficientnetb3',
        backbone_weight_path=backbone_weight_path,
        log_path=os.path.join(out_dir, 'experiment_log')
        ).binary_classify_train()

end_time = time.time()
print('完成，共耗时{}s，结果保存在 {}'.format(
    end_time - start_time, os.path.join(output_model_path, 'example_binary_cls')))

train start



---------------------------------------------------------------------------

RuntimeError                              Traceback (most recent call last)

<ipython-input-8-e19f59f2fadf> in <module>
     17         backbone_name='efficientnetb3',
     18         backbone_weight_path=backbone_weight_path,
---> 19         log_path=os.path.join(out_dir, 'experiment_log')
     20         ).binary_classify_train()
     21 


~/anaconda3/lib/python3.6/site-packages/iobjectspy/ml/vision/_trainer.pyc in __init__(self, train_data_path, config, epoch, batch_size, lr, output_model_path, output_model_name, backbone_name, backbone_weight_path, log_path, reload_model, pretrained_model_path)


~/anaconda3/lib/python3.6/site-packages/iobjectspy/_jsuperpy/_utils.pyc in check_lic()


RuntimeError: SuperMap_licensefile_7C_featrue_not_found

设置模型路径

model_path = os.path.join(out_dir, 'example_binary_cls', 'example_binary_cls.sdm')

二元分类模型预测

out_data = os.path.join(out_dir, 'out_building.udb')
out_dataset_name = 'predict_building'
start_time = time.time()
Inference(input_data=dom_path,
          model_path=model_path,
          out_data=out_data,
          out_dataset_name=out_dataset_name).binary_classify_infer(offset=200, result_type='region')

end_time = time.time()
print('提取完成，共耗时{}s，结果数据保存在 {} 数据源下 {} 数据集中'.format(
    end_time - start_time, out_data, out_dataset_name))

---------------------------------------------------------------------------

RuntimeError                              Traceback (most recent call last)

<ipython-input-10-140057ca4d4a> in <module>
      5           model_path=model_path,
      6           out_data=out_data,
----> 7           out_dataset_name=out_dataset_name).binary_classify_infer(offset=200, result_type='region')
      8 
      9 end_time = time.time()


~/anaconda3/lib/python3.6/site-packages/iobjectspy/ml/vision/_inference.pyc in __init__(self, input_data, model_path, out_data, out_dataset_name)


~/anaconda3/lib/python3.6/site-packages/iobjectspy/_jsuperpy/_utils.pyc in check_lic()


RuntimeError: SuperMap_licensefile_7C_featrue_not_found