Denoising of 3D magnetic resonance images using non-local PCA and Transform-Domain Filter
Journal Title: LAHORE GARRISON UNIVERSITY RESEARCH JOURNAL OF COMPUTER SCIENCE AND INFORMATION TECHNOLOGY - Year 2017, Vol 1, Issue 1
Abstract
The Magnetic Resonance Imaging (MRI) technology used in clinical diagnosis demands high Peak Signal-to-Noise ratio (PSNR) and improved resolution for accurate analysis and treatment monitoring. However, MRI data is often corrupted by random noise which degrades the quality of Magnetic Resonance (MR) images. Denoising is a paramount challenge as removing noise causes reduction in the fine details of MRI images. We have developed a novel algorithm which employs Principal Component Analysis (PCA) decomposition and Wiener filtering. We have proposed a two stage approach. In first stage, non-local PCA thresholding is applied on noisy image and second stage uses Wiener filter over this filtered image. Our algorithm is implemented using MATLAB and performance is measured via PSNR. The proposed approach has also been compared with related state-of-art methods. Moreover, we present both qu1alitative and quantitative results which prove that proposed algorithm gives superior denoising performance.
Authors and Affiliations
LARAIB KANWAL, MUHAMMAD USMAN SHAHID
Keywords
Related Articles
- EP ID EP276743
- DOI -
- Views 111
- Downloads 0
Review on Huawei Fusion Sphere Security
The cloud computing virtualization stage is another method for giving computing resources that give clients available and financially savvy benefits, and bring hazards in meantime. In this way, ensuring the privacy, trus...
A Quantum Optimization Model for Dynamic Resource Allocation in Cloud Computing
Quantum Computing and Cloud Computing technologies have potential capability to change the dynamic of future computing. Similarly, both Complexities, time and Space are the basic constraints which can determine the effic...
A Non-Parametric Comparison between Advances Software Engineering Process Model
Software development process provides detailed guideline for development testing and maintenance of software products. It deals with the risks associated with software development and a road map to manage its complexitie...
A Spatial 3 X 3 Average Filter for De-Noising in Digital Images with the Help of Median Filter
Digital image processing includes many factors like Image enhancement, segmentation, object recognition, removal of noise and many more. Noise removal is the one of the hot area of image processing. Noise can be minimize...
An Adaptive Computer Algorithm Using Newly Developed Imbedded Interpolating Polynomials to Determine the Equations of Polynomials and Their Derivatives
The problem of generalization of certain principles and rules in Science, Engineering, Economics and all other disciplines dominates; particularly when these schemes are required to be expressed in mathematical functions...