Wavelet-based medical image fusion via a non-linear operator

Medical image fusion has been extensively used to aid medical diagnosis by combining images of various modalities such as Computed Tomography (CT) and Magnetic Resonance Image (MRI) into a single output image that contains salient features from both inputs. This paper proposes a novel fusion algorit...

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Main Authors: Omar, Zaid, Ahmed, Saif S., Mokji, Musa, Hanafi, Marsyita, Bhateja, Vikrant
Format: Conference or Workshop Item
Published: 2017
Subjects:
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author Omar, Zaid
Ahmed, Saif S.
Mokji, Musa
Hanafi, Marsyita
Bhateja, Vikrant
author_facet Omar, Zaid
Ahmed, Saif S.
Mokji, Musa
Hanafi, Marsyita
Bhateja, Vikrant
author_sort Omar, Zaid
collection ePrints
description Medical image fusion has been extensively used to aid medical diagnosis by combining images of various modalities such as Computed Tomography (CT) and Magnetic Resonance Image (MRI) into a single output image that contains salient features from both inputs. This paper proposes a novel fusion algorithm through the use of a non-linear fusion operator, based on the low sub-band coefficients of the Discrete Wavelet Transform (DWT). Rather than employing the conventional mean rule for approximation sub-bands, a modified approach is taken by the introduction of a non-linear fusion rule that exploits the multimodal nature of the image inputs by prioritizing the stronger coefficients. Performance evaluation of CT-MRI image fusion datasets based on a range of wavelet filter banks shows that the algorithm boasts improved scores of up to 92% as compared to established methods. Overall, the non-linear fusion rule holds strong potential to help improve image fusion applications in medicine and indeed other fields.
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spelling utm.eprints-970172022-09-13T06:57:07Z http://eprints.utm.my/97017/ Wavelet-based medical image fusion via a non-linear operator Omar, Zaid Ahmed, Saif S. Mokji, Musa Hanafi, Marsyita Bhateja, Vikrant TK Electrical engineering. Electronics Nuclear engineering Medical image fusion has been extensively used to aid medical diagnosis by combining images of various modalities such as Computed Tomography (CT) and Magnetic Resonance Image (MRI) into a single output image that contains salient features from both inputs. This paper proposes a novel fusion algorithm through the use of a non-linear fusion operator, based on the low sub-band coefficients of the Discrete Wavelet Transform (DWT). Rather than employing the conventional mean rule for approximation sub-bands, a modified approach is taken by the introduction of a non-linear fusion rule that exploits the multimodal nature of the image inputs by prioritizing the stronger coefficients. Performance evaluation of CT-MRI image fusion datasets based on a range of wavelet filter banks shows that the algorithm boasts improved scores of up to 92% as compared to established methods. Overall, the non-linear fusion rule holds strong potential to help improve image fusion applications in medicine and indeed other fields. 2017 Conference or Workshop Item PeerReviewed Omar, Zaid and Ahmed, Saif S. and Mokji, Musa and Hanafi, Marsyita and Bhateja, Vikrant (2017) Wavelet-based medical image fusion via a non-linear operator. In: 2016 IEEE Region 10 Conference, TENCON 2016, 22 - 25 November 2016, Singapore. http://dx.doi.org/10.1109/TENCON.2016.7848214
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Omar, Zaid
Ahmed, Saif S.
Mokji, Musa
Hanafi, Marsyita
Bhateja, Vikrant
Wavelet-based medical image fusion via a non-linear operator
title Wavelet-based medical image fusion via a non-linear operator
title_full Wavelet-based medical image fusion via a non-linear operator
title_fullStr Wavelet-based medical image fusion via a non-linear operator
title_full_unstemmed Wavelet-based medical image fusion via a non-linear operator
title_short Wavelet-based medical image fusion via a non-linear operator
title_sort wavelet based medical image fusion via a non linear operator
topic TK Electrical engineering. Electronics Nuclear engineering
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AT ahmedsaifs waveletbasedmedicalimagefusionviaanonlinearoperator
AT mokjimusa waveletbasedmedicalimagefusionviaanonlinearoperator
AT hanafimarsyita waveletbasedmedicalimagefusionviaanonlinearoperator
AT bhatejavikrant waveletbasedmedicalimagefusionviaanonlinearoperator