International Journal of Nonlinear Analysis and Applications
Medical images fusion based on equilibrium optimization and discrete wavelet
Document Type : Research Paper
Authors
1 Department of Computer Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
2 Department of Computer Engineering, Sepidan Branch, Islamic Azad University, Sepidan, Iran
Abstract
Integrating multimodal medical imaging has many advantages for diagnosis and clinical analysis because it creates the conditions for physicians to make more accurate diagnoses. To the best of our knowledge, there are still some disadvantages to current image fusion methods. First, image fusion often has low contrast due to the law of weight average to combine low-frequency components. The second problem is the loss of accurate information in the merged image. This paper presents a wavelet-based method and equilibrium optimization for MRI and PET medical image fusion to obtain a high-quality image fusion. In the proposed method, the equilibrium optimization algorithm finds the appropriate common points in MRI and PET images and performs the combination with the help of wavelet transform. This allows the welded image to retain the details transferred from the MRI images significantly. Experimental results show that the proposed approach is effective in significantly increasing the quality of the integrated image and preserves the insignificant information transmitted from the input images.
Keywords
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Volume 12, Special Issue
December 2021Pages 1337-1354
- Receive Date: 15 February 2021
- Accept Date: 23 August 2021