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An Efficient Denoising Technique Using Filters With Noise Estimator

Authors(2):

Prerna Sahu, Devanand Bhosle
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Magnetic resonance medical images are generally corrupted by random noise from the measurement process which reduces the accuracy and reliability of any automatic analysis. Development in computerized medical image reconstruction has make medical imaging into one of the most important sub-fields in scientific imaging. The quality of digital medical images become an important issue with the use of digital imaging to diagnose a disease. It is necessary that medical image must be clean, sharp and noise free to obtain a best possible diagnosis. As the technology became advance the quality of digital images continue to improve, the result is in improvement in the resolution and quality of images, removing noise from these images is one of the challenging task because they could blur and mask important parameter of the images. These are different images de-noising methods each having their own advantages and disadvantages. De-noising methods are often applied to increase the signal to noise ratio (SNR) and improve image quality. The search for efficient image de-noising methods is still a valid challenge at the crossing of functional analysis and statistic. Many de-noising methods have been developed over the years, among this method, wavelet thresholding is one of the most popular approaches. In wavelet thresholding a signal is decomposed into its approximation (Low frequency) and detail (high frequency) sub-bands; since most of the image information is connected in a few large coefficients, the detail sub-bands are processed with hard or soft thresholding operations.

Prerna Sahu, Devanand Bhosle

2D-Images, Noise Signals, signal to noise ratio, frequency, Wavelet, DWT, SSTC, Median Filter

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Publication Details

Published in : Volume 2 | Issue 3 | May-June - 2016
Date of Publication Print ISSN Online ISSN
2016-06-30 2395-1990 2394-4099
Page(s) Manuscript Number   Publisher
728-732 IJSRSET1623125   Technoscience Academy

Cite This Article

Prerna Sahu, Devanand Bhosle, "An Efficient Denoising Technique Using Filters With Noise Estimator", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 2, Issue 3, pp.728-732, May-June-2016.
URL : http://ijsrset.com/IJSRSET1623125.php

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