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- # Copyright (c) OpenMMLab. All rights reserved.
- from unittest import TestCase
- import torch
- from mmengine.utils.dl_utils.parrots_wrapper import _BatchNorm
- from mmpose.models.backbones import VGG
- class TestVGG(TestCase):
- @staticmethod
- def check_norm_state(modules, train_state):
- """Check if norm layer is in correct train state."""
- for mod in modules:
- if isinstance(mod, _BatchNorm):
- if mod.training != train_state:
- return False
- return True
- def test_vgg(self):
- """Test VGG backbone."""
- with self.assertRaises(KeyError):
- # VGG depth should be in [11, 13, 16, 19]
- VGG(18)
- with self.assertRaises(AssertionError):
- # In VGG: 1 <= num_stages <= 5
- VGG(11, num_stages=0)
- with self.assertRaises(AssertionError):
- # In VGG: 1 <= num_stages <= 5
- VGG(11, num_stages=6)
- with self.assertRaises(AssertionError):
- # len(dilations) == num_stages
- VGG(11, dilations=(1, 1), num_stages=3)
- # Test VGG11 norm_eval=True
- model = VGG(11, norm_eval=True)
- model.init_weights()
- model.train()
- self.assertTrue(self.check_norm_state(model.modules(), False))
- # Test VGG11 forward without classifiers
- model = VGG(11, out_indices=(0, 1, 2, 3, 4))
- model.init_weights()
- model.train()
- imgs = torch.randn(1, 3, 224, 224)
- feat = model(imgs)
- self.assertEqual(len(feat), 5)
- self.assertEqual(feat[0].shape, (1, 64, 112, 112))
- self.assertEqual(feat[1].shape, (1, 128, 56, 56))
- self.assertEqual(feat[2].shape, (1, 256, 28, 28))
- self.assertEqual(feat[3].shape, (1, 512, 14, 14))
- self.assertEqual(feat[4].shape, (1, 512, 7, 7))
- # Test VGG11 forward with classifiers
- model = VGG(11, num_classes=10, out_indices=(0, 1, 2, 3, 4, 5))
- model.init_weights()
- model.train()
- imgs = torch.randn(1, 3, 224, 224)
- feat = model(imgs)
- self.assertEqual(len(feat), 6)
- self.assertEqual(feat[0].shape, (1, 64, 112, 112))
- self.assertEqual(feat[1].shape, (1, 128, 56, 56))
- self.assertEqual(feat[2].shape, (1, 256, 28, 28))
- self.assertEqual(feat[3].shape, (1, 512, 14, 14))
- self.assertEqual(feat[4].shape, (1, 512, 7, 7))
- self.assertEqual(feat[5].shape, (1, 10))
- # Test VGG11BN forward
- model = VGG(11, norm_cfg=dict(type='BN'), out_indices=(0, 1, 2, 3, 4))
- model.init_weights()
- model.train()
- imgs = torch.randn(1, 3, 224, 224)
- feat = model(imgs)
- self.assertEqual(len(feat), 5)
- self.assertEqual(feat[0].shape, (1, 64, 112, 112))
- self.assertEqual(feat[1].shape, (1, 128, 56, 56))
- self.assertEqual(feat[2].shape, (1, 256, 28, 28))
- self.assertEqual(feat[3].shape, (1, 512, 14, 14))
- self.assertEqual(feat[4].shape, (1, 512, 7, 7))
- # Test VGG11BN forward with classifiers
- model = VGG(
- 11,
- num_classes=10,
- norm_cfg=dict(type='BN'),
- out_indices=(0, 1, 2, 3, 4, 5))
- model.init_weights()
- model.train()
- imgs = torch.randn(1, 3, 224, 224)
- feat = model(imgs)
- self.assertEqual(len(feat), 6)
- self.assertEqual(feat[0].shape, (1, 64, 112, 112))
- self.assertEqual(feat[1].shape, (1, 128, 56, 56))
- self.assertEqual(feat[2].shape, (1, 256, 28, 28))
- self.assertEqual(feat[3].shape, (1, 512, 14, 14))
- self.assertEqual(feat[4].shape, (1, 512, 7, 7))
- self.assertEqual(feat[5].shape, (1, 10))
- # Test VGG13 with layers 1, 2, 3 out forward
- model = VGG(13, out_indices=(0, 1, 2))
- model.init_weights()
- model.train()
- imgs = torch.randn(1, 3, 224, 224)
- feat = model(imgs)
- self.assertEqual(len(feat), 3)
- self.assertEqual(feat[0].shape, (1, 64, 112, 112))
- self.assertEqual(feat[1].shape, (1, 128, 56, 56))
- self.assertEqual(feat[2].shape, (1, 256, 28, 28))
- # Test VGG16 with top feature maps out forward
- model = VGG(16)
- model.init_weights()
- model.train()
- imgs = torch.randn(1, 3, 224, 224)
- feat = model(imgs)
- self.assertEqual(len(feat), 1)
- self.assertEqual(feat[-1].shape, (1, 512, 7, 7))
- # Test VGG19 with classification score out forward
- model = VGG(19, num_classes=10)
- model.init_weights()
- model.train()
- imgs = torch.randn(1, 3, 224, 224)
- feat = model(imgs)
- self.assertEqual(len(feat), 1)
- self.assertEqual(feat[-1].shape, (1, 10))
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