Author : 
Tagare, Hemant D. ; de Figueiredo, Rui J.P.
         
        
            Author_Institution : 
Madhav Electronics, Kurla, Bombay, India
         
        
        
        
        
        
        
            Abstract : 
As a generalization of the median and rank filters [1]-[3], the concept of an order filter as a useful signal and image processing tool is introduced. This filter obtains a best estimate of the signal based on its order statistics. The optimal design of such a filter is illustrated in the context of the problem of envelope estimation. Other applications are also briefly mentioned.
         
        
            Keywords : 
Additive noise; Amplitude estimation; Design methodology; Filtering theory; Gaussian processes; Image processing; Nonlinear filters; Signal processing; Statistics; Stochastic resonance;
         
        
        
            Journal_Title : 
Proceedings of the IEEE
         
        
        
        
        
            DOI : 
10.1109/PROC.1985.13119