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FastDeploy/examples/vision/classification/resnet/README_CN.md
Hu Chuqi bb96a6fe8f [Doc]Add English version of documents in examples (#1070)
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2023-01-06 09:34:28 +08:00

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English | 简体中文

ResNet准备部署模型

导出ONNX模型

导入Torchvision,加载预训练模型,并进行模型转换,具体转换步骤如下。

  import torch
  import torchvision.models as models

  model = models.resnet50(pretrained=True)
  batch_size = 1  #批处理大小
  input_shape = (3, 224, 224)   #输入数据,改成自己的输入shape
  # #set the model to inference mode
  model.eval()
  x = torch.randn(batch_size, *input_shape)	# 生成张量
  export_onnx_file = "ResNet50.onnx"			# 目的ONNX文件名
  torch.onnx.export(model,
                      x,
                      export_onnx_file,
                      opset_version=12,
                      input_names=["input"],	# 输入名
                      output_names=["output"],	# 输出名
                      dynamic_axes={"input":{0:"batch_size"},  # 批处理变量
                                      "output":{0:"batch_size"}})

下载预训练ONNX模型

为了方便开发者的测试下面提供了ResNet导出的各系列模型开发者可直接下载使用。下表中模型的精度来源于源官方库

模型 大小 精度
ResNet-18 45MB
ResNet-34 84MB
ResNet-50 98MB
ResNet-101 170MB

详细部署文档

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