Hello,
The documentation below explains about the layers and might be of help.
- Pixel classification layer: https://in.mathworks.com/help/vision/ref/nnet.cnn.layer.pixelclassificationlayer.html
- Dice classification layer: https://in.mathworks.com/help/vision/ref/nnet.cnn.layer.dicepixelclassificationlayer.html
- Focal loss layer: https://in.mathworks.com/help/vision/ref/nnet.cnn.layer.focallosslayer.html
