For import/export of CNN via Pytorch to Matlab, you may follow: https://www.mathworks.com/help/deeplearning/deep-learning-import-export-and-customization.html

and https://www.mathworks.com/help/deeplearning/ug/pretrained-convolutional-neural-networks.html

This is a good link and you need to have Deep Learning toolbox:

https://www.mathworks.com/products/deep-learning.html

https://arxiv.org/pdf/1703.09039