Abstract
A major approach to nonlinear filtering is based on robust estimation and especially on local L-estimators, i.e., on order statistics. The main advantage of this approach is its computational simplicity and speed. Filters based on order statistics.usually have good behavior in the presence of additive white Gaussian noise and long-tailed additive noise. They have good edge preservation properties and they can become adaptive. Thus, they are suitable in a variety of applications where classical linear filters fail, notably in digital image filtering. The best known and most widely used filter based on order statistics is the median filter. Originally, the median was widely used in statistics. It was introduced by Tukey in time series analysis in 1970. Later on, the median filter and its modifications have found numerous applications in digital image processing [2,3,13], in digital image analysis [15,46], in digital TV applications [44,47], in speech processing and coding [20,23], in cepstral analysis [45], and in various other applications. The reason for its success is its good performance and computational simplicity. The theoretical analysis of its deterministic and statistical properties has started at the end of the seventies. A description of the early theoretical results can be found in three very good review chapters in edited books, namely in [4,13,21]. The material of this chapter is based on the recently published results, as well as in the classical work described in [4, 13,21].
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
M.D. Levine, Vision in man and machine, Mc Graw-Hill, 1985.
W.K. Pratt, Digital image processing, Wiley, 1978.
H.C. Andrews, B.R. Hunt, Digital image restoration, Prentice-Hall 1977.
G.R. Arce, N.C. Gallagher, T.A. Nodes, “Median filters: theory for one-and two-dimensional filters”, in Advances in Computer Vision and Image Processing, T.S. Huang editor, JAI Press, 1986.
H.A. David, Order statistics,,Wiley, 1981.
J.W. Tukey, Exploratory data analysis, Addison-Wesley 1977.
F. Kuhlmann, G.L. Wise, “On the second moment properties of median filtered sequences of independent data”, IEEE Transactions on Communications, vol. COM-29, no. 9, pp. 1374–1379, Sept. 1981.
G.Y. Liao, T.A. Nodes, N.C. Gallagher, “Output distributions of two-dimensional median filters”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-33, no. 5, pp. 1280–1295, Oct. 1985.
T.A. Nodes, N.C. Gallagher, “The output distribution of the median type filters”, IEEE Transactions on Communications, vol. COM-32, pp. 532541, May 1984.
E.L. Lehmann, Theory of point estimation, J.Wiley, 1983.
J.W. Tukey, “A survey of sampling for contaminated distributions”, in Contributions to probability and statistics, O1kin editor, Stanford University Press, 1960.
F. Hampel, E. Ronchetti, P. Rousseevw, W. Stahel, Robust statistics: An approach based on influence functions, Wiley, 1986.
B.I. Justusson, “Median filtering: statistical properties” in Two-dimensional digital signal processing II, T.S. Huang editor, Springer Verlag, 1981.
P.J. Huber, “Robust estimation of a location parameter”, Ann. Math. Statist., vol. 35, pp. 73–101, 1964.
G.J. Yong, T.S. Huang, “The effect of median filtering in edge location estimation”, Computer Vision, Graphics and Image Processing, vol. 15, pp. 224–245, 1981.
E. Ataman, V.K. Aatre, K.M. Wong, “Some statistical properties of median filters”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-29, no. 5, pp. 1073–1075, Oct. 1981.
A.C. Bovik, T.S. Huang, D.C. Munson, “The effect of median filtering on edge estimation and detection”, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. PAMI-9, no. 2, pp. 181–194, March 1987.
D.H. Ballard, C.M. Brown, Computer vision, Prentice-Hall, 1983.
A.C. Bovik, “Streaking in median filtered images”, IEEE Transactions on Acoustics, Speech and signal Processing, vol. ASSP-35, pp. 493–503, April 1987.
L.R. Rabiner, M.R. Sambur, C.E. Schmidt, “Applications of a nonlinear smoothing algorithm to speech processing”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-23, pp. 552–557, Dec. 1975.
S.G Tyan, “Median filtering: Deterministic properties”, Two-dimensional Signal Processing II, T.S. Huang editor, Springer Verlag, 1981.
N.C. Gallagher, G.L. Wise, “A theoretical analysis of the properties of the median filter”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-29, no. 6, pp. 1135–1141, Dec. 1981.
G. Arce, N.C. Gallagher, “State description for the root-signal set of median filters”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-30, no. 6, pp. 894–902, Dec. 1982.
G.R. Arce, N.C. Gallagher, “Root-signal set analysis for median filters”, Proc. Allerton Conference Commun. Contr. Comp., Oct. 1980.
J.P. Fitch, E.J. Coyle, N.C. Gallagher, “Root properties and convergence rates for median filters”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-33, no. 1, pp. 230–240, Feb. 1985.
P. D. Wendt, E.J. Coyle, N.C. Gallagher, “Some convergence properties of median filters”, IEEE Transactions on Circuits and Systems, vol. CAS-33, no. 3, pp. 276–286, March 1986.
O.R. Mitchell, E. Delp, “Multilevel graphics representation using block truncation coding”, Proc. IEEE, vol. 68, July 1980.
J.P. Fitch, E.J. Coyle, N.C. Gallagher, “Median filtering by threshold decomposition”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-32, no. 6, pp. 1183–1188, Dec. 1984.
G.R. Arce, R.L. Stevenson, “On the synthesis of median filter systems”, IEEE Transactions on Circuits and Systems, vol. CAS-34, no. 4, pp. 420–429, April 1987.
G.R. Arce, “Statistical threshold decomposition for recursive and nonrecursive median filters”, IEEE Transactions on Information Theory, vol. IT-29, March 1986.
P.M. Narendra, “A separable median filter for image noise smoothing”, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. PAMI-3, no. 1, pp. 20–29, Jan. 1981.
T.A. Nodes, N.C. Gallagher, “Two-dimensional root structures and convergence properties of the separable median filter”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-31, no. 6, pp. 13501365, Dec. 1983.
M.P. Loughlin, G.R. Arce, “Deterministic properties of the recursive separable median filter”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-35, no. 1, pp. 98–106, Jan. 1987.
T.A. Nodes, N.C. Gallagher, “Median filters: some modifications and their properties”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-30, no. 5, pp. 739–746, Oct. 1982.
G.R. Arce, R.J. Crinon, “Median filters: analysis of two-dimensional recursively filtered signals” IEEE Int. Conf. on Acoustics, Speech and Signal Processing, 1984.
R.J. Crinon, G.R. Arce, “Median filters: analysis for signals with additive impulsive noise”, Proc. 21st Allerton Conference, Oct. 1983.
J. Astola, P. Heinonen, Y. Neuvo, “On root structure of median and median-type filters”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-35, no. 8, pp. 1199–1201, Aug. 1987.
A. Papoulis, Probability, random variables and stochastic processes, McGraw-Hill, 1984.
P.D. Wendt, E.J. Coyle, N.C. Gallagher Jr., “Stack filters”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-34, no. 4, pp. 898–911, Aug. 1986.
E.J. Coyle, J.H. Lin, “Stack filters and the mean absolute error criterion”, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-36, no. 8, pp. 1244–1254, Aug. 1988.
E.N. Gilbert, “Lattice-theoretic properties of frontal switching functions”, Journal of Mathematical Physics, vol. 33, pp. 57–67, Apr. 1954.
W.W. Boles, M. Kanewski, M. Simaan, “Recursive two-dimensional median filtering algorithms for fast image root extraction”, IEEE Transactions on Circuits and Systems, vol. CAS-35, no. 10, pp. 1323–1326, Oct. 1988.
G. Arce, N.C. Gallagher, “Stochastic analysis for the recursive median filter process”, IEEE Transactions on Information Theory, vol. IT-34, no. 4, pp. 669–679, July 1988.
S.S. Perlman, S. Eisenhandler, P.W. Lyons, M.J. Shumila, “Adaptive median filtering for impulse noise elimination in real-time TV signals”, IEEE Transactions on Communications, vol. COM-35, no. 6, pp. 646652, June 1987.
K.J. Hahn, K.M. Wong, “Median filtering of cepstra”, Proc. 1983 International Electrical and Electronics Conference,pp. 352–355, Toronto, Canada, 1983.
P. Zamperoni, “Feature extraction by rank-order filtering for image segmentation”, International Journal of Pattern Analysis and Artificial Intelligence, vol. 2, no. 2, pp. 301–319, 1988.
S.S.H. Naqvi, N.C. Gallagher, E.J. Coyle, “An application of median filter to digital TV”, Proc. 1986 IEEE Int. Conf. on Acoustics, Speech and Signal Processing,Tokyo, Japan, 1986.
V.J. Gebski, “Some properties of splicing when applied to nonlinear smoothers”, Comput. Statist. Data Analysis, no. 3, pp. 151–157, 1985.
D.R.K. Brownrigg, “Weighted median filters”, Commun. Assoc. Comput. Machinery, vol. 27, pp. 807–818, Aug. 1984.
O. Yli-Harja, “Median filters: extensions, analysis and design”, Technical Report, Lappeenranta University of Technology, Finland, 1989.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 1990 Springer Science+Business Media New York
About this chapter
Cite this chapter
Pitas, I., Venetsanopoulos, A.N. (1990). Median Filters. In: Nonlinear Digital Filters. The Springer International Series in Engineering and Computer Science, vol 84. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-6017-0_4
Download citation
DOI: https://doi.org/10.1007/978-1-4757-6017-0_4
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4419-5120-5
Online ISBN: 978-1-4757-6017-0
eBook Packages: Springer Book Archive