NDLI: Medical fusion framework using discrete fractional wavelets and non-subsampled directional filter banks

Content Provider	IET Digital Library
Author	Kaur, Gurpreet Singh, Sukhwinder Vig, Renu
Abstract	Image fusion in neuro diagnosis is intimidating due to its complexity. The heterogeneous natures of the original brain images make intermodal transmission difficult during fusion. Medical image fusion using complementary modalities results in loss of vital salient information. Poor fusion, colour deficiencies result due to similar processing for both the modalities. A dual technique is proposed using discrete fractional wavelet transform (FRWT) and non-subsampled directional filter banks for better extraction of salient image elements for improved diagnosis. The sparsity character of the coefficients FRWT is controlled by optimising the parity operator using Grey Wolf optimisation algorithm. Four sets of neurological multimodal magnetic resonance imaging and single photon emission computed tomography (CT) brain images are used from benchmark database for validation. The objective evaluation has been conducted using five metrics. The main values obtained from objective metrics based on the proposed technique are 6.3213 for Shannon entropy, mutual information is computed to be 2.7582, fusion factor is 1.9095, standard deviation is 0.1310, and edge strength is 0.76122 indicating improved diagnostic information and superior image quality. Subjective evaluation by a medico validates the findings with finer visual output and enhanced contrast in comparison with recent and state-of-the-art methods.
Starting Page	658
Ending Page	667
Page Count	10
ISSN	17519659
Volume Number	14
e-ISSN	17519667
Issue Number	Issue 4, Mar (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ipr/14/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2019.0948
Journal	IET Image Processing
Publisher Date	2019-11-08
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Biology And Medical Computing Biomedical Magnetic Resonance Imaging Biomedical MRI Brain Brain Image Channel Bank Filter Colour Deficiencies Computer Vision And Image Processing Technique Diagnostic Information Discrete Fractional Wavelet Transform Entropy Feature Extraction Grey Wolf Optimisation Algorithm Image Fusion Image Recognition Integral Transforms Intermodal Transmission Medical Fusion Framework Medical Image Fusion Medical Image Processing Medical Magnetic Resonance Imaging And Spectroscopy Neuro Diagnosis Neurological Multimodal Magnetic Resonance Imaging Neurophysiology Nonsubsampled Directional Filter Banks Nuclear Medicine, Emission Tomography Patient Diagnostic Method And Instrumentation Salient Image Element Shannon Entropy Single Photon Emission Computed Tomography Single Photon Emission Computed Tomography Brain Image Spectroscopy Superior Image Quality Vital Salient Information Wavelet Transform
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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