Image reconstruction algorithm for single-photon-emission computed tomography with uniform attenuation.
A new method is presented for obtaining an analytical solution to the image-reconstruction problem in single-photon-emission computed tomography. The rigorous solution is introduced by applying an analytical continuation process to the two-dimensional Fourier transform of the image, which is derived from the one-dimensional Fourier transforms of projection functions. The calculations can be carried out in a short computation time without involving unstable procedures. Numerical simulations were made to demonstrate the effectiveness of the proposed method.
Inouye
T
T
Institute of Applied Physics, University of Tsukuba, Ibaraki, Japan.
Kose
K
K
Hasegawa
A
A
D000465:Algorithms; D003198:Computer Simulation; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008961:Models, Structural; D014055:Tomography, Emission-Computed / Q000379:methods*