Local-mean preserving post-processing step for non-negativity enforcement in PET imaging: application to ${}^{90}$Y-PET

Maël Millardet, Saïd Moussaoui, Diana Mateus +2

In a low-statistics PET imaging context, the positive bias in regions of low activity is a burning issue. To overcome this problem, algorithms without the built-in non-negativity c…