Denoising CT Images using wavelet transform
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2015, Vol 6, Issue 5
Abstract
Image denoising is one of the most significant tasks especially in medical image processing, where the original images are of poor quality due the noises and artifacts introduces by the acquisition systems. In this paper, we propose a new image denoising scheme by modifying the wavelet coefficients using soft-thresholding method, we present a comparative study of different wavelet denoising techniques for CT images and we discuss the obtained results. The denoising process rejects noise by thresholding in the wavelet domain. The performance is evaluated using Peak Signal-to-Noise Ratio (PSNR) and Mean Squared Error (MSE). Finally, Gaussian filter provides better PSNR and lower MSE values. Hence, we conclude that this filter is an efficient one for preprocessing medical images.
Authors and Affiliations
Lubna Gabralla, Hela Mahersia, Marwan Zaroug
Keywords
Related Articles
- EP ID EP111358
- DOI 10.14569/IJACSA.2015.060520
- Views 101
- Downloads 0
Efficient Gabor-Based Recognition for Handwritten Arabic-Indic Digits
In daily life, the need of automatically digitizing paper documentations and recognizing textual images is still present with existing and potential upcoming rooms for improvements, especially for languages like Arabic,...
Effect of Routing Protocols and Layer 2 Mediums on Bandwidth Utilization and Latency
Computer networks (CNS) are progressing as emerging field in information and communication technology (ICT). Various computer networks related problems relies on performance of computer network specifically bandwidth uti...
DDoS Classification Using Neural Network and Naïve Bayes Methods for Network Forensics
Distributed Denial of Service (DDoS) is a network security problem that continues to grow dynamically and has increased significantly to date. DDoS is a type of attack that is carried out by draining the available resour...
E-Participation Modeling and Developing with Trust for Decision Making Supplement Purpose
ICT has been employed in various areas, including e-Participation to support citizen participation and achieve democracy ideal. Trust as a social behavior can be used as a method to model preferences and facilitate...
Enhanced Textual Password Scheme for Better Security and Memorability
Traditional textual password scheme provides a large number of password combinations but users generally use a small portion of available password space. Complex textual passwords are difficult to remember, therefore mos...