Re: [Rtk-users] Elekta / kV-kV image Reconstruction and Test dataset

2021-05-21 Thread Simon Rit
Please stay on the mailing list, the conversation might be interesting for other users. You can use two projections and launch the reconstruction but the result will be far from a 3D image of the object. Check for example figure 7 in doi.org/10.1016/j.media.2010.03.005. I doubt Varian or IBA claim

Re: [Rtk-users] Elekta / kV-kV image Reconstruction and Test dataset

2021-05-21 Thread Simon Rit
Hi, 1. Yes, simply change the dimension and origin to make it 3D, for example to --dimension 1024 --origin -127.875 which will set the same values for the three dimensions. 2. No, you need more than 2 projection to reconstruct a 3D image. I think you need to read some books on tomography to

[Rtk-users] Elekta / kV-kV image Reconstruction and Test dataset

2021-05-20 Thread gwoodstccd via Rtk-users
Hello all, I'm one newbie for ITK/RTK. I have some programming experience, but for image processing is totally new for me. I have 3 basic questions: 1. when I run example for reconstructing Elekta CBCT sequence from https://wiki.openrtk.org/index.php/RTK/Examples/ElektaReconstruction. .