On the Use of Lee's Protocol for Speckle-Reducing Techniques
  This paper presents two new MAP (Maximum a Posteriori) filters for speckle noise reduction and a Monte Carlo procedure for the assessment of their performance. In order to quantitatively evaluate the results obtained using these new filters, with respect to classical ones, a Monte Carlo extension of Lee's protocol is proposed. This extension of the protocol shows that its original version leads to inconsistencies that hamper its use as a general procedure for filter assessment. Some solutions for these inconsistencies are proposed, and a consistent comparison of speckle-reducing filters is provided. 
Elsa E. Moschetti, M. Gabriela Palacio, Mery Picco, Oscar H. Bustos,   Alejandro C. Frery
cs.CV