Allowing full rotation [-180, 180]

[gzamps]

Thank you for sharing your work.
I've been trying to solve a rotated object detection problem, but in my case I want to predict full rotation or θ [-180, 180] degrees.
For example, it matters if the object is pointing up or down.

Would allowing the cos output to have values from [-1,1] (tanh activation in both model and loss) achieve this?
Do you have any suggestion on this?
I am looking forward to your input!