508 Hits in 7.9 sec

A Parallel Fuzzy Algorithm for Real-Time Medical Image Enhancement

Josep Arnal, Mónica Chillarón, Estíbaliz Parcero, Luis B. Súcar, Vicente Vidal
2020 International Journal of Fuzzy Systems  
In this paper, we introduce a parallel method designed to reduce mixed Gaussian-impulse noise from digital images. The method uses fuzzy logic and the fuzzy peer group concept.  ...  Medical images may be corrupted by noise. This noise affects the image quality and can obscure important information required for accurate diagnosis.  ...  Acknowledgements This research was supported by the Spanish Ministry of Science, Innovation and Universities (Grant RTI2018-098156-B-C54) co-financed by FEDER funds.  ... 
doi:10.1007/s40815-020-00953-3 fatcat:bdkdco4emzd5zm4kwfmt4f7alu

Is large improvement in efficiency of impulsive noise removal in color images still possible?

Lukasz Malinski, Krystian Radlak, Bogdan Smolka, Yiming Tang
2021 PLoS ONE  
The substantial improvement in the efficiency of switching filters, intended for the removal of impulsive noise within color images is described.  ...  The results show that improvement in objective quality measures can be achieved by using more robust detection techniques, combined with novel methods of corrupted pixel restoration.  ...  PLOS ONE Is large improvement in efficiency of impulsive noise removal in color images still possible?  ... 
doi:10.1371/journal.pone.0253117 pmid:34181667 pmcid:PMC8238199 fatcat:bkl3lkwqcfejjpuh2jkt4hb56q

Adaptive Context-Tree-Based Statistical Filtering for Raster Map Image Denoising

Minjie Chen, Mantao Xu, Pasi Franti
2011 IEEE transactions on multimedia  
Filtering of raster map images is chosen as a case study of a more general class of palette-indexed images for the denoising problem of images with a discrete number of output colors.  ...  information on the statistical properties of the noise.  ...  Morillas for providing the code of his algorithm.  ... 
doi:10.1109/tmm.2011.2166538 fatcat:jecled7kdbckxkvc7bcifo2xka

Fuzzy averaging filter for impulse noise reduction in colour images with a correction step

Valentín Gregori, Samuel Morillas, Bernardino Roig, Almanzor Sapena
2018 Journal of Visual Communication and Image Representation  
In this paper we propose a fuzzy detection and reduction method for impulse noise in colour images. Detection is based on the fuzzyfication of a well-known statistic called ROD.  ...  Fuzzy averaging has some advantages in terms of both noise reduction and detail preservation in front of detect and replace approaches because of threshold based decisions of the latter.  ...  But no fuzzy restoration step has been introduced for impulse noise removal in color images.  ... 
doi:10.1016/j.jvcir.2018.06.025 fatcat:foz7arx5hffi7fw75jipscfoue

Quaternion switching filter for impulse noise reduction in color image

Xin Geng, Xiaoguang Hu, Jin Xiao
2012 Signal Processing  
A novel approach to impulse noise reduction in color image is introduced in this paper.  ...  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.  ...  In [1, [23] [24] [25] [26] , the switching filters based on the peer group technique are introduced.  ... 
doi:10.1016/j.sigpro.2011.06.015 fatcat:wjplprig5bdbbh3ffqm3b4ntzy

On the application of the reachability distance in the suppression of mixed Gaussian and impulsive noise in color images

Bogdan Smolka, Damian Kusnik
2020 Multimedia tools and applications  
In this paper, we address the problem of mixed Gaussian and impulsive noise reduction in color images.  ...  A robust filtering technique is proposed, which is utilizing a novel concept of pixels dissimilarity based on the reachability distance.  ...  Generally, the noise filtering methods used for color image enhancement can be divided into component-wise and vector-based techniques.  ... 
doi:10.1007/s11042-020-09550-w fatcat:5l7d57g3rjcffbp7pbsv6bv6k4

Computational Intelligence in Image Processing

Erik Cuevas, Daniel Zaldívar, Gonzalo Pajares, Marco Perez-Cisneros, Raul Rojas
2013 Mathematical Problems in Engineering  
Cuevas et al. presents an algorithm for the automatic detection of circular shapes from complicated and noisy images with no consideration of the conventional Hough transform principles.  ...  Experimental results show that the performance of the proposed scheme is superior to those from former data hiding schemes for VQ-based, VQ/SMVQ-based, and search order coding (SOC)-based compressed images  ...  We hope this special issue offers a comprehensive and timely view of the area of applications of computational intelligence in image processing and that it will grant stimulation for further research.  ... 
doi:10.1155/2013/530404 fatcat:tbfbagmcizfqdmwjfqlww3xlxy

An adaptive switching filter based on approximated variance for detection of impulse noise from color images

K. Pritamdas, Kh. Manglem Singh, L. Lolitkumar Singh
2016 SpringerPlus  
An adaptive center weighted vector median filter is used for the lower noise ratio whereas for higher noise ratio the noisy pixels are detected based on the comparison of the difference between the mean  ...  These unwanted information which are termed as noise must be removed properly from the image as a preprocessing step.  ...  with impulse noise. Non-linear filters which actually work in spatial domain suit well for impulse noise removal from color images (Celebi et al. 2007) .  ... 
doi:10.1186/s40064-016-3644-9 pmid:27933245 pmcid:PMC5108754 fatcat:nftln32vszcapowpbt66auyjmu

Fuzzy Clustering Algorithm with Non-Neighborhood Spatial Information for Surface Roughness Measurement Based on the Reflected Aliasing Images

Hang Zhang, Jian Liu, Lin Chen, Ning Chen, Xiao Yang
2019 Sensors  
The results indicate that FCM_NNS is very effective and robust to noisy aliasing images.  ...  Through incorporating non-neighborhood spatial information, the robustness performance of the proposed FCM_NNS with respect to the noise can be significantly improved.  ...  Conflicts of Interest: The authors declare no conflict of interest. Sensors 2019, 19, 3285  ... 
doi:10.3390/s19153285 fatcat:xboymypyhjek3f3tkbrywwuulm

Adaptive rank weighted switching filter for impulsive noise removal in color images

Bogdan Smolka, Krystyna Malik, Dariusz Malik
2012 Journal of Real-Time Image Processing  
In this paper, a novel approach to the problem of impulsive noise removal in color digital images is presented.  ...  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.  ...  Acknowledgments This work has been supported by the Polish Ministry of Science and Higher Education Development Grant OR 00002111.  ... 
doi:10.1007/s11554-012-0307-0 fatcat:yswcqfkydvcgjn6pir7dhn5mqu

Efficient Novel Vector Median Filter Design for Impulse Noise Suppression in Color Images

Benjamin Asubam Weyori, Kwame Osei Boateng, Sampson Twumasi-Ankrah
2017 International Journal of Innovative Computing, Information and Control  
color component with the smallest dissimilarity measure in the window; (ii) detecting impulsive pixels in regions of highly dense impulse noise mixed with bright image pixels and edge pixels.  ...  The NVMF is implemented in MATLAB and applied to several noisy color images to test the performance of the filter.  ...  I denotes the noisy image and K denotes he filtered image. with a robust mechanism in detecting impulse noise in a color image.  ... 
doi:10.24507/ijicic.13.06.1965 fatcat:izmbqdycvre5fo3mi6qwwqq5yy

Partition-based vector filtering technique for suppression of noise in digital color images

Zhonghua Ma, Hong Ren Wu, Dagan Feng
2006 IEEE Transactions on Image Processing  
A partition-based adaptive vector filter is proposed for the restoration of corrupted digital color images. The novelty of the filter lies in its unique three-stage adaptive estimation.  ...  The proposed filter has demonstrated satisfactory results in suppressing many distinct types of noise in natural color images.  ...  Lukac of the Bell Canada Multimedia Laboratory, University of Toronto, for kindly providing all the corrupted test images, and the anonymous reviewers for their valuable comments which helped to improve  ... 
doi:10.1109/tip.2006.877066 pmid:16900687 fatcat:4kjz5nxgibgetfcyqrlalcvyny

Computer-Aided Diagnosis System of Alzheimer's Disease Based on Multimodal Fusion: Tissue Quantification Based on the Hybrid Fuzzy-Genetic-Possibilistic Model and Discriminative Classification Based on the SVDD Model

Lazli, Boukadoum, Ait Mohamed
2019 Brain Sciences  
: An improved computer-aided diagnosis (CAD) system is proposed for the early diagnosis of Alzheimer's disease (AD) based on the fusion of anatomical (magnetic resonance imaging (MRI)) and functional (  ...  The robustness of the tissue quantification process is proven against noise (20% level), partial volume effects and when inhomogeneities of spatial intensity are high.  ...  Many thanks for the researchers and expert clinicians from ADNI, OASIS and Gabriel-Montpied hospital (France) for developing the images used in the preparation of this work.  ... 
doi:10.3390/brainsci9100289 pmid:31652635 pmcid:PMC6826987 fatcat:jdkws4we3vfebd6gkdopjaqply

A Novel Adaptive Non-Local Means-Based Nonlinear Fitting for Visibility Improving

Hongtao Wu, Lei Jia, Ying Meng, Xiao Liu, Jinhui Lan
2018 Symmetry  
The visibility improving is mainly to remove the noise in the image, in order to trade off denoising and detail maintaining.  ...  The spatial-based method has become the most widely used method in improving the visibility of images.  ...  Y.M. is responsible for the proofreading of article. X.L. is responsible for the demand analysis of article. J.L. is responsible for the technical support and architecture design of the article.  ... 
doi:10.3390/sym10120741 fatcat:sdhiflyycrfyloh5xsplw75aee

Optimal fuzzy system design for additive noise removal in color images

Snekha Snekha
2013 IOSR Journal of Electronics and Communication Engineering  
use pixel similarity based concept.The Gaussian noise will be removed by using weighted mean filtering of peer group members.  ...  This paper presents a new approach to remove the additive noise using fuzzy logic and modified bacterial foraging in color images.  ...  Acknowledgements The authors thank the reviewers for their valuable comments and suggestions that helped us to make the paper in its present form Speed and Position Control of Train System Using GPS  ... 
doi:10.9790/2834-560107 fatcat:hhbke72jsrcuxhvryf777lq3ja
« Previous Showing results 1 — 15 out of 508 results