Gaussian and Poisson noise identification using non-convex optimization with L2-norm power constraintsZiad Zaabouli, Lekbir Afraites, Amine Laghrib and Aissam HadriESAIM: M2AN, 59 3 (2025) 1705-1727DOI: https://doi.org/10.1051/m2an/2025043