updates
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14
train.py
14
train.py
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@ -237,11 +237,15 @@ def train():
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imgs = imgs.to(device).float() / 255.0 # uint8 to float32, 0 - 255 to 0.0 - 1.0
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imgs = imgs.to(device).float() / 255.0 # uint8 to float32, 0 - 255 to 0.0 - 1.0
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targets = targets.to(device)
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targets = targets.to(device)
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# Hyperparameter burn-in
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# Hyperparameter Burn-in
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# n_burn = 100 # number of burn-in batches
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n_burn = 100 # number of burn-in batches
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# if ni < n_burn:
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if ni <= n_burn:
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# for x in optimizer.param_groups:
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g = (ni / n_burn) ** 4 # gain
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# x['lr'] = x['initial_lr'] * (ni / n_burn) ** 4 # gain rises from 0 - 1
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for x in model.named_modules():
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if x[0].endswith('BatchNorm2d'):
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x[1].momentum = 1 - 0.9 * g # momentum falls from 1 - 0.1
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for x in optimizer.param_groups:
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x['lr'] = x['initial_lr'] * g # gain rises from 0 - 1
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# Plot images with bounding boxes
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# Plot images with bounding boxes
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if ni < 1:
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if ni < 1:
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