Title :
Statistical analysis of the median based multi-shell order-statistics filters
Author :
Li, J. S Jimmy ; Ramsingh, Anand
Author_Institution :
Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand
Abstract :
The multi-shell median filters have been shown to be effective in preserving image details as well as in the suppression of impulsive noise. In this paper, the statistical analysis of a general class of median based multi-shell order-statistics filters is presented. Using statistical threshold decomposition, together with a tri-tree structure, the statistical properties of the filters were derived. Based on the results, a 2-D nonlinear filter which is of good compromise between noise attenuation and detail preservation to fit various applications can be obtained
Keywords :
image processing; median filters; statistical analysis; two-dimensional digital filters; 2D nonlinear filter; detail preservation; image details; impulsive noise suppression; median based multi-shell order-statistics filters; noise attenuation; statistical analysis; statistical threshold decomposition; tri-tree structure; Boolean functions; Filtering theory; Filters; Probability; Random sequences; Statistical analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389510
