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Nuclear imaging modalities like Positron emission tomography (PET) are characterized by a low SNR value due to the underlying signal generation mechanism. Given the significant role images play in current-day diagnostics, obtaining noise-free PET images is of great interest. With its higher packing density and larger and symmetrical neighbourhood, the hexagonal lattice offers a natural robustness to degradation in signal. Based on this observation, we propose an alternate solution to denoising,doi:10.1109/icip.2015.7351451 dblp:conf/icip/AbbasS15 fatcat:czhavkbwg5hhvgbiamsj3dfrzy