Example of synthetic image with additional Poisson noise with an angular dependent magnitude (left) and the result of applying ACF on the images (right)
Taken from "Non-isotropic noise correlation in PET data reconstructed by FBP but not by OSEM demonstrated using auto-correlation function"
BMC Medical Imaging 2005;5():3-3.
Published online 13 May 2005
Copyright © 2005 Razifar et al; licensee BioMed Central Ltd.