Yup, in fact, the universal feature extraction is what allows imagenet pretraining to work well on lung cancer images. One nitpick though, ConvNets can absolut

Yup, in fact, the universal feature extraction is what allows imagenet pretraining to work well on lung cancer images. One nitpick though, ConvNets can absolutely be used to do "thinking" and more than just feature extraction. For example, fully convolutional networks can be extremely competitive with FC-layer based nets.