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An image segmentation project using PyTorch to segment the Left Atrium in 3D Late gadolinium enhanced - cardiac MR images of the human heart.

License: MIT License

Python 100.00%
pytorch deep-learning convolutional-neural-networks vnet3d cardiac-segmentation vnet attention-mechanism boto3 image-segmentation focal-loss

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pangda72 johnwog wangzhenlin123

vnet_pytorch-atriaseg2018's Issues

SurfaceLoss:'function' object has no attribute 'shape'

Hi，@bragancas

Thank you for sharing such a great repo.I have some confusion about the loss, could you give me some help ？

Q1: In the utils.py,focal_loss = (1+(label199)) * (1 - pt) ** self.gamma * BCE.Actually,focal_loss = self.alpha * (1 - pt) ** self.gamma * BCE,
I don't know why alpha=(1+(label199)) ,Could you give me some guidance?

Q2:When I use SurfaceLoss，I got a error:'function' object has no attribute 'shape' ,I don't know how to solve this bug. Could you give me some help ?

Thanks in advance.
Looking forward your reply.
Best.

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