Ghosts in tomography – the null space of the radon transform
Ghosts in tomography – the null space of the radon transform
Abstract Let ω 0 , …, ω p −1 ϵ S 1 be p distinct directions and let R denote the Radon transform. The functions f with support in the unit disc and with Rf ( s , ω j ) = 0 for s ϵ [−1, 1] and j …