Title :
Multilevel median filters for image processing
Author :
Wichman, Risto ; Neuvo, Yrjö
Author_Institution :
Dept. of Electr. Eng., Tampere Univ. of Technol., Finland
Abstract :
The authors analyze multilevel FIR (finite impulse response) median hybrid (FMH) filters and show that some multilevel structures can be expressed as single weighted FMH filters. The multilevel in-place growing filtering concept is introduced to combat the dilemma between detail preservation and noise attenuation of the multilevel filters
Keywords :
digital filters; filtering and prediction theory; picture processing; FIR; detail preservation; finite impulse response; image processing; median hybrid filters; multilevel structures; noise attenuation; single weighted FMH filters; Additive noise; Attenuation; Boolean functions; Filtering; Finite impulse response filter; Image processing; Multi-stage noise shaping; Nonlinear filters; Shape; Signal analysis;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176361
