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Filters
Vector sigma filters for noise detection and removal in color images
2006
Journal of Visual Communication and Image Representation
Preserved Fulltext
Robust order-statistic concepts and statistical measure of vectorsÕ deviation are used in conjunction with different distance measures among multichannel inputs to determine an efficient switching rule ...
between filter output and no filtering (identity operation). ...
The most popular color image filters are those based on the concept of robust vector order-statistics ( Fig. 1 ) [1, 2, 36] . ...
doi:10.1016/j.jvcir.2005.08.007
fatcat:enjiqigmp5hz7kiy36jd2svy7e
Adaptive rank weighted switching filter for impulsive noise removal in color images
2012
Journal of Real-Time Image Processing
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The described switching filter is based on the rank weighted, cumulated pixel dissimilarity measures, which are used for the detection of image samples contaminated by impulsive noise process. ...
The introduced adaptive design enables the filter to tune its parameters to the amount of impulsive noise corrupting the image. ...
PGF
Peer Group Filter
[72]
ACWVMF
Adaptive Center-Weighted Vector Median Filter
[53]
RODSVMF
Rank-Ordered Differences Statistic Based Switching Vector Median Filter
[62]
ACWDDF
Adaptive Center-Weighted ...
doi:10.1007/s11554-012-0307-0
fatcat:yswcqfkydvcgjn6pir7dhn5mqu
Reduced Ordering Technique of Impulsive Noise Removal in Color Images
[chapter]
2013
Lecture Notes in Computer Science
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The performance comparison shows that the proposed filtering design yields significantly better denoising results than the most efficient filters developed for the impulsive noise suppression in color ...
The new filtering design is able to effectively suppress impulsive noise, while preserving fine image details. ...
The most popular family of nonlinear filters used for impulsive noise removal in color images is based on the order statistics [4] . ...
doi:10.1007/978-3-642-36700-7_23
fatcat:m7wusuegrvgehb7go4xxdjlulq
VIRTUAL RESTORATION OF ARTWORKS USING ENTROPY-BASED COLOR IMAGE FILTERING SCHEMES
[chapter]
2006
Computational Imaging and Vision
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This paper presents a family of adaptive color image filters based on robust order-statistics and local contrast entropy control. ...
The proposed filtering class is fully adaptive and free of any optimization procedure. ...
Replacing the sample meanx of (2) with the lowest ranked vector x (1) constitutes the ranking based entropy vector median filter. ...
doi:10.1007/1-4020-4179-9_44
dblp:conf/iccvg/LukacPS04
fatcat:rzcjuu2pc5hfno4jfebnf3psh4
Fast Switching Filter for Impulsive Noise Removal from Color Images
2007
Journal of Imaging Science and Technology
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In this paper, we present a fast switching filter for impulsive noise removal from color images. ...
The filter exploits the HSL color space, and is based on the peer group concept, which allows for the fast detection of noise in a neighborhood without resorting to pairwise distance computations between ...
An important class of nonlinear vector filters is the one based on robust order-statistics with the vector median filter (VMF) [15] , the basic vector directional filter (BVDF) [16] , and the directionaldistance ...
doi:10.2352/j.imagingsci.technol.(2007)51:2(155)
fatcat:ezfx6til6zf4xnwxnze7gyqe3a
Blind Adaptive Constrained Constant-Modulus Reduced-Rank Interference Suppression Algorithms Based on Interpolation and Switched Decimation
2011
IEEE Transactions on Signal Processing
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The proposed BARC scheme and a reduced-rank decomposition based on the concept of joint interpolation, switched decimation and reduced-rank estimation subject to a set of constraints are then detailed. ...
A model-order selection algorithm for adjusting the length of the estimators is devised along with techniques for determining the required number of switching branches to attain a predefined performance ...
, leading to different vectors , , where is the decimation factor and is the rank of the BARC system. ...
doi:10.1109/tsp.2010.2091274
fatcat:33wua2xlo5cvlowyhtjnkdxexm
Extension of Impulse Detectors to Spatial Dimension and their Utilization as Switch in the LMS L-SD Filter
2001
Radioengineering
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Some versions of spatial order statistic detectors weredeveloped from the impulse detectors and were employed as switchbetween output these filters. ...
In this paper, one kind of adaptive LMS filters based on orderstatistics is used for two-dimensional filtration of noisy greyscaleimages degraded by mixed noise. ...
One of the best-known classes of nonlinear filters is based on the order statistics. ...
doaj:ac7a439c446f40dcbcc2e775ff1fa8ae
fatcat:gmlgxbphv5a6jivsyt7j4ojhwe
Performance Evaluation of different Image Filtering Algorithms using Image Quality Assessment
2011
International Journal of Computer Applications
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In this paper, five different filtering algorithms are compared based on the ability to reconstruct noise affected images using ROI-SSIM. ...
Experimental results give us the quality assessment of filtering algorithms based on region of interest. ...
FILTERING ALGORITHMS Order-static filters are nonlinear filters whose response is based on the ordering (ranking) the pixels contained in the image area encompassed by the filter, and then replacing the ...
doi:10.5120/2289-2972
fatcat:66bao5jdvfdorojpb2ectfbuim
An Effective Noise Adaptive Median Filter for Removing High Density Impulse Noises in Color Images
2016
International Journal of Electrical and Computer Engineering (IJECE)
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The proposed method is a spatial domain approach and uses the 3×3 overlapping window to filter the signal based on the correct selection of neighborhood values to obtain the effective median per window ...
In this paper we have analyzed and tested the number of existing median filtering algorithms and their limitations. ...
Order statistic filters are nonlinear spatial filters whose response is based on ordering the pixels contained in the image area encompassed by the filter and then replacing the value of the center pixel ...
doi:10.11591/ijece.v6i2.9044
fatcat:lhi57h567vhhrpzqmsbnrr2zla
Generalized low-rank decompositions with switching and adaptive algorithms for space-time adaptive processing
2011
2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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An alternating optimization strategy based on recursive least squares algorithms is presented along with switching and iterations to cost-effectively compute the bases of the decomposition and the low-rank ...
filter. ...
In order to compute the parameters required in the signal decomposition and the low-rank filter, an alternating optimization strategy based on recursive least squares (RLS) algorithms is presented along ...
doi:10.1109/icassp.2011.5947306
dblp:conf/icassp/Lamare11
fatcat:4kir2425qzdmjcz735c6xgjfdu
Efficient Novel Vector Median Filter Design for Impulse Noise Suppression in Color Images
2017
International Journal of Innovative Computing, Information and Control
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This work proposes an intelligent switching based vector median filter that adapts and combines different techniques for noise detection, noise filtering. ...
Although different types of efficient vectors' median filters have been proposed in literature, researchers have not resolved the problem identified in vector filters: (i) detecting impulse noise in individual ...
Filter Abbreviation Filter PGF Peer Group Filter ACWVMF Adaptive Center-Weighted Vector Median Filter RODSVMF Rank-Ordered Differences Statistic Based Switching Vector Median Filter ACWDDF Adaptive Center-Weighted ...
doi:10.24507/ijicic.13.06.1965
fatcat:izmbqdycvre5fo3mi6qwwqq5yy
Generalized Reduced-Rank Decompositions Using Switching and Adaptive Algorithms for Space-Time Adaptive Processing
[article]
2013
arXiv
pre-print
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An alternating optimization strategy based on recursive least squares algorithms is presented along with switching and iterations to cost-effectively compute the bases of the decomposition and the low-rank ...
filter. ...
In order to compute the parameters required in the signal decomposition and the low-rank filter, an alternating optimization strategy based on recursive least squares (RLS) algorithms is presented along ...
arXiv:1304.1932v1
fatcat:tz5e3kltjnaf7gi2ctlhxpxbca
Quaternion switching filter for impulse noise reduction in color image
2012
Signal Processing
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Based on the difference mentioned above, an efficient filter that can switch between the vector median filter (VMF) and the identity filter (no filtering operation) is proposed. ...
By applying the quaternion unit transform theory, the difference between two color pixels can be represented in the quaternion form. ...
(ASVMF) [22] , the robust switching vector median filter (RSVMF) [19] , the adaptive center-weighted vector median filter (ACWVMF) [20] , the fuzzy rank-ordered differences statistic filter (FRF) ...
doi:10.1016/j.sigpro.2011.06.015
fatcat:wjplprig5bdbbh3ffqm3b4ntzy
A survey on impulse noise removal techniques in image processing
2018
International Journal of Advanced Technology and Engineering Exploration
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Then, based on the observed limitations, further improvements on impulse noise removal techniques are suggested. ...
Initially, different techniques are analysed and its limitations are addressed. ...
Localised rank-ordered differences vector filter [10] was proposed for suppression of high-density impulse noise in color images. ...
doi:10.19101/ijatee.2018.543008
fatcat:7bomp65gang5xh22z262v5odxm
Nonlinear vector filtering for impulsive noise removal from color images
2007
Journal of Electronic Imaging (JEI)
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In order to ensure a fair efficiency comparison, a fast and accurate approximation for the inverse cosine function is introduced. ...
In this paper, a comprehensive survey of 48 filters for impulsive noise removal from color images is presented. The filters are formulated using a uniform notation and categorized into 8 families. ...
order statistics, with the vector median filter ͑VMF͒ 8 being the most widely known example. ...
doi:10.1117/1.2772639
fatcat:zaq3fdzqmrfbhc65wzmmp2o3ta
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