Difference between realtime res18 and non-realtime res18 model

[bryanyzhu]

Hi @ycszen , thank you for providing this great repo. I have a question about the difference between realtime res18 and non-realtime res18 model. As shown in the readme, realtime res18 has 74.8 mIoU, while non-realtime res18 has 76.2 mIoU. I didn't see any difference between these two models, so why is one of them realtime and the other is not?

I searched the issues, and found your answer to this one (#24), saying realtime res18 is doing whole evaluation while non-realtime res18 is doing sliding evaluation. This makes sense at first. But when I downloaded these two models, I found their sizes are different, one is 105M, the other is 108M. So the models are actually different, it is not just the evaluation strategy.

So I'm confused here. Could you help to clarify the difference between these two models? Thank you very much.

[lxtGH]

Real time model needs the resized images as inputs.