We apply the natural pixel (NP) approach to the single photon emission computed tomography (SPECT) problem. The rotational invariance of the system induces a block circulant structure in the Gram matrix. This structure can be used to reduce the computational efforts needed for solving the inverse problem.
A Fourier approach to the natural pixel discretization of brain single-photon emission computed tomography
BINDI, DINO;BRIANZI, PAOLA;DI BENEDETTO, FABIO
2002-01-01
Abstract
We apply the natural pixel (NP) approach to the single photon emission computed tomography (SPECT) problem. The rotational invariance of the system induces a block circulant structure in the Gram matrix. This structure can be used to reduce the computational efforts needed for solving the inverse problem.
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