Model parameters of CRM model

[Billy-ZTB]

Hello, thanks for your great work! I have a question about the model parameter amount of the CRM model.
You declared in your paper that the params are 9.27M.

However, I calculated the parameters with resnet50 as backbone(same as it was denoted in the implementation details) and got about 24M params, which is much bigger than 9.27M. I wonder which backbone was used to get 9.27M params and is it possible to utilize a light weight backbone to get a decent performance.