Title :
Frequency response of 2-D median filters
Author_Institution :
Inst. of Electron. & Telecommun., Poznan Univ. of Technol., Poland
Abstract :
Because of their unique nonlinear features medians are used in filtering procedures since many years, both in one- or twodimensional procedures, medians are able to reject numbers or signal samples differing substantially from all neighbouring elements of a sequence. On the other hand medians can be approximately described by their frequency characteristics, which are typically used for linear circuits. An analysis of frequency responses for some popular median windows in twodimensional case is given in the contribution.
Keywords :
frequency response; median filters; two-dimensional digital filters; 2D median filters; digital signal processing; filtering windows; frequency response; Digital filters; Digital signal processing; Filtering; Frequency domain analysis; Frequency response; Linear circuits; Nonlinear filters; Power harmonic filters; Shape; Signal analysis;
Conference_Titel :
Multidimensional Systems, 2005. NDS 2005. The Fourth International Workshop on
Print_ISBN :
3-9810299-8-4
DOI :
10.1109/NDS.2005.195322
