Multiscale Medical Image Fusion in Wavelet Domain

Wavelet transforms have emerged as a powerful tool in image fusion. However, the study and analysis of medical image fusion is still a challenging area of research. Therefore, in this paper, we propose a multiscale fusion of multimodal medical images in wavelet domain. Fusion of medical images has b...

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Main Authors: Rajiv Singh, Ashish Khare
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2013/521034
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author Rajiv Singh
Ashish Khare
author_facet Rajiv Singh
Ashish Khare
author_sort Rajiv Singh
collection DOAJ
description Wavelet transforms have emerged as a powerful tool in image fusion. However, the study and analysis of medical image fusion is still a challenging area of research. Therefore, in this paper, we propose a multiscale fusion of multimodal medical images in wavelet domain. Fusion of medical images has been performed at multiple scales varying from minimum to maximum level using maximum selection rule which provides more flexibility and choice to select the relevant fused images. The experimental analysis of the proposed method has been performed with several sets of medical images. Fusion results have been evaluated subjectively and objectively with existing state-of-the-art fusion methods which include several pyramid- and wavelet-transform-based fusion methods and principal component analysis (PCA) fusion method. The comparative analysis of the fusion results has been performed with edge strength (Q), mutual information (MI), entropy (E), standard deviation (SD), blind structural similarity index metric (BSSIM), spatial frequency (SF), and average gradient (AG) metrics. The combined subjective and objective evaluations of the proposed fusion method at multiple scales showed the effectiveness and goodness of the proposed approach.
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spelling doaj-art-e7ecdf4c40e047648d9c9bbe79fbac0c2025-08-20T03:21:01ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/521034521034Multiscale Medical Image Fusion in Wavelet DomainRajiv Singh0Ashish Khare1Department of Electronics and Communication, University of Allahabad, Allahabad 211002, IndiaDepartment of Electronics and Communication, University of Allahabad, Allahabad 211002, IndiaWavelet transforms have emerged as a powerful tool in image fusion. However, the study and analysis of medical image fusion is still a challenging area of research. Therefore, in this paper, we propose a multiscale fusion of multimodal medical images in wavelet domain. Fusion of medical images has been performed at multiple scales varying from minimum to maximum level using maximum selection rule which provides more flexibility and choice to select the relevant fused images. The experimental analysis of the proposed method has been performed with several sets of medical images. Fusion results have been evaluated subjectively and objectively with existing state-of-the-art fusion methods which include several pyramid- and wavelet-transform-based fusion methods and principal component analysis (PCA) fusion method. The comparative analysis of the fusion results has been performed with edge strength (Q), mutual information (MI), entropy (E), standard deviation (SD), blind structural similarity index metric (BSSIM), spatial frequency (SF), and average gradient (AG) metrics. The combined subjective and objective evaluations of the proposed fusion method at multiple scales showed the effectiveness and goodness of the proposed approach.http://dx.doi.org/10.1155/2013/521034
spellingShingle Rajiv Singh
Ashish Khare
Multiscale Medical Image Fusion in Wavelet Domain
The Scientific World Journal
title Multiscale Medical Image Fusion in Wavelet Domain
title_full Multiscale Medical Image Fusion in Wavelet Domain
title_fullStr Multiscale Medical Image Fusion in Wavelet Domain
title_full_unstemmed Multiscale Medical Image Fusion in Wavelet Domain
title_short Multiscale Medical Image Fusion in Wavelet Domain
title_sort multiscale medical image fusion in wavelet domain
url http://dx.doi.org/10.1155/2013/521034
work_keys_str_mv AT rajivsingh multiscalemedicalimagefusioninwaveletdomain
AT ashishkhare multiscalemedicalimagefusioninwaveletdomain