What is the different between ResNet variants?

Hi, could you please help me understand the difference between version b, c, d, e, s of ResNetV1b in GluonCV? And why their dilated version is used as backbone in Segmentation models?

This papers goes over the difference between the different letter variants of ResNet

b, c, d are explained there.

V1e is based on v1d, the beginning of the channel changed from 32-32-64 to 64-64-128
v1s is based on v1c, the beginning of the channel changed from 32-32-64 to 64-64 -128

The dilation is used to increase the receptive field for the output of the layer.

Also see this answer here on the discuss gluon forum: https://discuss.gluon.ai/t/topic/9656

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Thanks a lot! I was clueless :slight_smile: