Title :
Optimal weighted median filters under structural constraints
Author :
Yang, Ruikang ; Yin, Lin ; Gabbouj, Moncef ; Astola, Jaakko ; Neuvo, Yrjo
Author_Institution :
Signal Processing Lab., Tampere Univ. of Technol., Finland
Abstract :
An algorithm is developed for finding optimal weighted median (WM) filters which minimize noise subject to a predetermined set of structural constraints on the filter´s behavior. Based on the derivation of the output moments of weighted medians, it is shown that optimal weighted medians with structural constraints may be found by solving a group of linear inequalities. One-dimensional applications are discussed
Keywords :
filtering theory; median filters; optimisation; 1D applications; nonlinear filters; optimal weighted median filters; output moments; structural constraints; weighted medians; Filtering; Filters; Laboratories; Noise reduction; Pulse generation; Signal design; Signal processing algorithms; Space vector pulse width modulation; Statistical analysis; Statistics;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393878
