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For questions related to the U-net, a neural network proposed in "U-Net: Convolutional Networks for Biomedical Image Segmentation" (2015) by Olaf Ronneberger et al. for semantic segmentation.

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What is the role of skip connections in U-Net?

You should checkout the original resnet paper which popularized skip connections, or shortcut connections, in the modern literature. See Related Work Section 2 in the paper. Basically though, residiua …
juicedatom's user avatar
1 vote

Semantic segmentation CNN outputs all zeroes

Similar to other answers, I don't know Matlab that well but you could try the following steps to debug your problem. Make sure you can overfit to a single instance from your dataset, pull out a single …
juicedatom's user avatar