Hey guys, I found a way to implement multi-class dice loss, I get satisfying segmentations now. I implemented the loss as explained in ref : this paper describes the Tversky loss, a generalised form of dice loss, which is identical to dice loss when alpha=beta=0.5. Here is …
04.10.2020 · Hello everyone, i am trying to use dice loss for my 3D point cloud semantic segmentation model. Although, I have implemented the function by referencing some of the codes, I am not sure whether it is correct as my IoU for my validation set does not increase compare to using cross entropy loss solely. Below is my function for multi class dice loss: def …
The Dice score is widely used for binary segmentation due to its robustness to class imbalance. Soft generalisations of the Dice score allow it to be used ...
03.12.2020 · I am doing multi class segmentation using UNet. My input to the model is HxWxC and my output is, outputs = layers.Conv2D(n_classes, (1, 1), activation='sigmoid')(decoder0) Using SparseCategoricalCrossentropy I can train the network fine. Now I would like to also try dice coefficient as the loss function. Implemented as follows,
26.02.2018 · I just implemented the generalised dice loss (multi-class version of dice loss) in keras, as described in ref: (my targets are defined as: (batch_size, image_dim1, image_dim2, image_dim3, nb_of_classes))