Have you solved this problem? I have the same question?

I read your paper and then tried to implement your code. I was going through the function lf_reparam_tfand I got stuck trying to figure out what exactly is going on. The first question that I have is that why are you multiplying the plane co-ordinates u and v with the camera parameter aperture_res while reparameterizing the light field? What exactly does the parameter aperture_res signify?

Also, in the paper, while generating the blurred image, the plane co-ordinates x and y are not reparameterized. However, in the code, I see that x and y are also getting reparameterized along with u and v. Why is it so?

Sorry. I did not figure this issue out.