Jevgenija Rudzusika

Results 12 comments of Jevgenija Rudzusika

I have tried all implementations, the numbers are slightly different, but the inconsistency persists. The same happens, while using Parallel2dGeometry and FanBeamGeometry.

Python 3. Same problem with 14.0. I discovered this problem when I was trying to remove the influence of space cell volume on the operator norm. The dependency correspond to...

I see interpolation from curved to flat detector primarily as a mapping between the data, because it is what take the most effort. Right now mapping between the data is...

I think it is generally bad to break backwards compatibility. Using numpy arrays directly is nice, but isn't it possible to add such possibility without removing old classes?

> I spent some time thinking about this @JevgenijaAksjonova, but frankly I cannot come up with a solution. Of course we could try to keep the old classes, but we'd...

> > What about returning an array if the array is given as input and space element in the opposite case? > > The problem is that this would break...

It might be a bit confusing, but one must define f to be a regularizer and g to be data discrepancy, see https://odlgroup.github.io/odl/generated/odl.solvers.nonsmooth.proximal_gradient_solvers.accelerated_proximal_gradient.html and also this example https://github.com/odlgroup/odl/blob/master/examples/solvers/proximal_gradient_wavelet_tomography.py

Why not using regularizer = reg_param * odl.solvers.L1Norm(grad.range)*grad ?

Right, the proximal is not implemented for the composition of l1 and gradient. This is because there is no closed form formula for that. If you want to do TV...

Hi! I am going to implement Flying Focal Spot! Does anyone have ideas on how to do it better?