Denoising by optimal fuzzy thresholding in waveletdomain
Lik‐Kwan Shark, C. Yu · Electronics Letters · 2000
The construction of a hybrid wavelet threshold is presented based on fuzzy combination of an unbiased risk estimate and an asymptotic near-minimax fixed threshold for noise suppression. The optimality of the proposed threshold is demonstrated by recovering a Gaussian envelope sinusoidal signal embedded in the additive white Gaussian noise in good and poor signal-to-noise ratio scenarios.