Deep denoiser prior driven relaxed iterated Tikhonov method for low-count PET image restoration
Weike Chang,
Nicola D’Ascenzo,
Emanuele Antonecchia
et al.
Abstract:Objective. Low-count positron emission tomography (PET) imaging is an efficient way to promote more widespread use of PET because of its short scan time and low injected activity. However, this often leads to low-quality PET images with clinical image reconstruction, due to high noise and blurring effects. Existing PET image restoration (IR) methods hinder their own restoration performance due to the semi-convergence property and the lack of suitable denoiser prior. 
Approach. To overcome these limita… Show more
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