Hi! I am wondering what’s meaningful gradient here? Is that possible the gradients are no meaning even the whole forward pass are differentiable? (the grad_fn exists).
Another question is that I only need to crop some region from the feature maps, instead using torch.nn.functional.grid_sample 88, can I simply use the feature_maps[y1:y2, x1:x2]. My target is to make the coordinates of box trainable, which can find the important region of feature maps. Thanks!