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Nonlinear Diffusion based on Bayesian Estimator in Laplacian Pyramid Domain for Ultrasonic Speckle Reduction

Md. MotiurRahman, Mina Mina, Mohammad Azim
2012 International Journal of Applied Information Systems  
Laplacian pyramid based nonlinear diffusion (LPND) method is proposed for speckle noise reduction in medical ultrasound imaging.  ...  For nonlinear diffusion in each pyramid layer, a Bayesian threshold is automatically determined by a variation of robust median estimator.  ...  In this paper, we present a new speckle reduction method based on Laplacian pyramid.  ... 
doi:10.5120/ijais12-450795 fatcat:okh63vsxmbdtromhiqs3utxi2m

Non-subsampled contourlet transform based spatially adaptive shrinkage for speckle reduction of medical ultrasound image

Chengzhi Deng, Shengqian Wang, Jianguo Liu, Kunio Doi, Aaron Fenster, S. C. Chan
2009 MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques  
In this paper, a statistical spatially adaptive approach for speckle reduction in medical ultrasound images based posterior conditional means (PCM) estimation in the nonsubsampled contourlet domain is  ...  Speckle is a multiplicative noise that degrades ultrasound images.  ...  The authors would also like to thank the anonymous reviewers for their helpful comments.  ... 
doi:10.1117/12.832430 fatcat:4ukq22b4rvbdtmbwek5i4leyrq

Linear Regression Model for Gaussian Noise Estimation and Removal for Medical Ultrasound Images

P. S.Hiremath, Prema T. Akkasaligar, Sharan Badiger
2012 International Journal of Computer Applications  
The objective of the paper is to propose a novel linear regression model for Gaussian representation of speckle noise in medical ultrasound images.  ...  Ultrasound imaging is widely used in the field of medicine. It is used for imaging soft tissues in organs like liver, kidney, spleen, uterus, heart, brain etc.  ...  Ramesh Mankare, Radiologist, Sangameshwar Scanning Centre, Bijapur, Karnataka, for providing the ultrasound images of kidney, liver and also for helpful discussions.  ... 
doi:10.5120/7750-0808 fatcat:s32lutnd3rboxjf3triypj6m7i

Qualitative and Quantitative Evaluation of Image Denoising Techniques

Charandeep Singh Bedi, Himani Goyal
2010 International Journal of Computer Applications  
Speckle has a negative impact on ultrasound images, as the texture does not reflect the local echogenicity of the underlying scatterers.  ...  Speckle noise is referred as ‗texture' in medical literature and it may contain useful diagnostic information.  ...  , Issue 7-10, pp.221-224.[2] Achim, A., and Bezerianos, A. (2001), -Novel Bayesian Multiscale Method for Speckle Removal in Medical Ultrasound  ... 
doi:10.5120/1313-1775 fatcat:6jau5allbfgudjlgrb4k2ncn7y

Speckle Reducing Contourlet Transform For Medical Ultrasound Images

P.S. Hiremath, Prema T. Akkasaligar, Sharan Badiger
2011 Zenodo  
Speckle noise affects all coherent imaging systems including medical ultrasound. In medical images, noise suppression is a particularly delicate and difficult task.  ...  A tradeoff between noise reduction and the preservation of actual image features has to be made in a way that enhances the diagnostically relevant image content.  ...  A new improved algorithm is proposed by Hiremath and Tegnoor [11] in which follicle segmentation is achieved by using a speckle reduction method based on contourlet transform for denoising medical ultrasound  ... 
doi:10.5281/zenodo.1062772 fatcat:qvhw3yjnivf6rbetqn5annxyfm

Performance Comparison of Wavelet Transform and Contourlet Transform based methods for Despeckling Medical Ultrasound Images

P.S. Hiremath, Prema T. Akkasaligar, Sharan Badiger
2011 International Journal of Computer Applications  
The speckle is most often considered a dominant source of multiplicative noise in ultrasound imaging and should be filtered out without affecting important features of the image.  ...  The widespread usage of ultrasound imaging equipment necessitates the need for better image processing techniques to offer a clearer image to the medical practitioner.  ...  [9] have presented a contourlet based speckle reduction method for breast ultrasound images.  ... 
doi:10.5120/3130-4313 fatcat:herv6to6s5dnxj27tq3iwvdnju

Speckle Noise Reduction in Medical Ultrasound Images [chapter]

P.S. Hiremath, Prema T., Sharan Badiger
2013 Advancements and Breakthroughs in Ultrasound Imaging  
Acknowledgements Authors are grateful to the reviewers for their helpful comments which improved the quality of the paper. Further, authors are thankful to Dr. Ramesh Mankare, Radiologist, Sangamesh-  ...  So, speckle noise reduction is an essential pre processing step, whenever ultrasound imaging is used for medical imaging.  ...  A speckle reduction method based on Laplacian pyramid transform for medical ultrasound image is illustrated using the block diagram shown in the Figure 7 .  ... 
doi:10.5772/56519 fatcat:lszozuu3pzgvjepunxm4qurcuy

Nonlocal means-based speckle filtering for ultrasound images

Pierrick Coupe, Pierre Hellier, Charles Kervrann, Christian Barillot
2009 IEEE Transactions on Image Processing  
In this paper, an adaptation of the Non Local (NL-) means filter is proposed for speckle reduction in ultrasound (US) images.  ...  Originally developed for additive white Gaussian noise, we propose to use a Bayesian framework to derive a NL-means filter adapted to a relevant ultrasound noise model.  ...  Accordingly, a dedicated noise model used for US images is first considered. A Bayesian formulation of the NL-means filter [3] is then used to derive a new speckle filter. A.  ... 
doi:10.1109/tip.2009.2024064 pmid:19482578 pmcid:PMC2784081 fatcat:mlchqasgfng2jcpuedvqpjdimm

A multiscale optimization approach for the dynamic contour-based boundary detection issue

M. Mignotte, J. Meunier
2001 Computerized Medical Imaging and Graphics  
We present a new multiscale approach for deformable contour optimization. The method relies on a multigrid minimization method and a coarse-to-®ne relaxation algorithm.  ...  of anatomical structures in ultrasound medical imagery.  ...  The authors are also grateful to Dr Francois Charbonneau (Royal Victoria Hospital) for having provided the echobrachial images.  ... 
doi:10.1016/s0895-6111(00)00075-6 pmid:11179703 fatcat:e42jkr255bbqzelwb7jrzrpukm

A Novel Method for Despeckling of Ultrasound Images Using Cellular Automata-Based Despeckling Filter

Ankur Bhardwaj, Sanmukh Kaur, Anand Prakash Shukla, Manoj Kumar Shukla
2021 International Journal of E-Health and Medical Communications (IJEHMC)  
In different approaches for reducing the speckle noise, there exists a class of filters that convert multiplicative noise into additive noise by using algorithmic functions.  ...  Ultrasound images have an inherent property termed as speckle noise that is the outcome of interference between incident and reflected ultrasound waves which reduce image resolution and contrast and could  ...  In the future, one may try to design a new type of transition function for the cellular automata which are used for filtering the medical ultrasound images.  ... 
doi:10.4018/ijehmc.20210901.oa2 fatcat:c4khvnugjved3ktvhou62lrqd4

Speckle Noise Reduction in Ultrasound Images by Wavelet Thresholding based on Weighted Variance

S. Sudha, G. R. Suresh, R. Sukanesh
2009 Journal of clean energy technologies  
speckle reduction Index Terms-Medical imaging, Speckle noise, Ultrasound images, Wavelet Thresholding.  ...  Consequently medical images are very inconsistent, and it is crucial to operate case to case. This paper presents a wavelet-based thresholding scheme for noise suppression in ultrasound images.  ...  In our work, we recommend a novel thresholding algorithm for denoising speckle in ultrasound with wavelets. We favor our approach by Bayes Shrinkage function.  ... 
doi:10.7763/ijcte.2009.v1.2 fatcat:5mjhp3372bbereykez3gxbmkzi

An Extensive Review of Significant Researches on Medical Image Denoising Techniques

Mredhula. L, M. A. Dorairangasamy
2013 International Journal of Computer Applications  
In addition, a brief description on the digital images and medical images is presented. A concise note on Radiography, Ultrasound, MRI and CT images is also presented.  ...  In this day and age, digital images play a significant role in our day-to-day life. Digital images are utilized in a wide range of fields like medical, business and more.  ...  In ultrasound imaging, numerous methods have been proposed for speckle reduction.  ... 
doi:10.5120/10699-1551 fatcat:qq7ijy7r7zdhnesrdjow7ucsxq

Nonlinear Diffusion in Laplacian Pyramid Domain for Ultrasonic Speckle Reduction

Fan Zhang, Yang Mo Yoo, Liang Mong Koh, Yongmin Kim
2007 IEEE Transactions on Medical Imaging  
ACKNOWLEDGMENT The authors would like to thank all the reviewers for providing several important suggestions for improving the paper.  ...  Generally speaking, there are two main purposes for speckle reduction in medical ultrasound imaging. First, speckle reduction can aid human interpretation of ultrasound images.  ...  For reducing speckle in ultrasound images, several multiscale (e.g., wavelet and pyramid) methods have been proposed.  ... 
doi:10.1109/tmi.2006.889735 pmid:17304734 fatcat:bp66c2iwdrfk3o2c37wxsk55nu

A Review of Wavelet Denoising in MRI and Ultrasound Brain Imaging

Aleksandra Pizurica, Alle Wink, Ewout Vansteenkiste, Wilfried Philips, B.Jos Roerdink
2006 Current Medical Imaging Reviews  
A review of wavelet denoising in MRI and ultrasound brain imaging. Current medical imaging reviews, 2(2), 247-260.  ...  Noise Reduction in Ultrasound Images A. Speckle noise in ultrasound images Speckle noise [38, 39] affects all coherent imaging systems including medical ultrasound.  ...  Such a speckle model seems to be too simplistic in the case of medical ultrasound images, for different reasons.  ... 
doi:10.2174/157340506776930665 fatcat:oi34n7qtcrdopc3imyj6ymnthy

Multiresolution edge detection using enhanced fuzzy c-means clustering for ultrasound image speckle reduction

Stavros Tsantis, Stavros Spiliopoulos, Aikaterini Skouroliakou, Dimitrios Karnabatidis, John D. Hazle, George C. Kagadis
2014 Medical Physics (Lancaster)  
Investing in knowledge society through the European Social Fund.  ...  Sudha et al. 26 developed a new method for speckle suppression in medical US images in the wavelet domain using a weighted variance for estimating the threshold and multiscale product scheme for thresholding  ...  INTRODUCTION Ultrasound (US) imaging is an important technology for medical imaging because it is free of ionizing radiation, inexpensive, quick, and convenient.  ... 
doi:10.1118/1.4883815 pmid:24989413 fatcat:gvnkxbgapbgznezbi5cvyk7wre
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