Implementation of dice loss - vision - PyTorch Forums
discuss.pytorch.org › t › implementation-of-diceAug 16, 2019 · Hi All, I am trying to implement dice loss for semantic segmentation using FCN_resnet101. For some reason, the dice loss is not changing and the model is not updated. import torch import torchvision import loader from loader import DataLoaderSegmentation import torch.nn as nn import torch.optim as optim import numpy as np from torch.utils.data.sampler import SubsetRandomSampler from torch ...
About Dice loss, Generalized Dice loss - PyTorch Forums
discuss.pytorch.org › t › about-dice-lossMar 05, 2021 · torch.manual_seed(1001) out = Variable(torch.randn(3, 9, 64, 64, 64)) print >> tensor(5.2134) tensor(-5.4812) seg = Variable(torch.randint(0,2,[3,9,64,64, 64])) #target is in 1-hot-encoded format def dice_loss(prediction, target, epsilon=1e-6): """ prediction is a torch variable of size BatchxnclassesxHxW representing log probabilities for each ...