Thank you. Indeed I tried inference on a pretrained model with no normalization and it worked. Some notes though:

Consider explaining why the pretrained detection models are the only ones that don’t require image normalization (I understand that the training set was not normalized. But again, why?)
Worth mentioning that no normalization is needed. The classification, segmentation and detection pretrained models are trained on ImageNet, so one may think all of them require ImageNet normalization, when in fact only the classification and segmentation models require normalization.
Perhaps it’s best to put this info in a table, since the pretrained video models also have a normalization, but different.