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Non Sub-Sampled Contourlet with Joint Sparse Representation Based Medical Image Fusion

Kandasamy Kittusamy*, Latha Shanmuga Vadivu Sampath Kumar
Department of Electronics and Communication Engineering, Tamilnadu College of Engineering, Coimbatore, 641659, India
* Corresponding Author: Kandasamy Kittusamy. Email:

Computer Systems Science and Engineering 2023, 44(3), 1989-2005.

Received 28 December 2021; Accepted 09 March 2022; Issue published 01 August 2022


Medical Image Fusion is the synthesizing technology for fusing multimodal medical information using mathematical procedures to generate better visual on the image content and high-quality image output. Medical image fusion represents an indispensible role in fixing major solutions for the complicated medical predicaments, while the recent research results have an enhanced affinity towards the preservation of medical image details, leaving color distortion and halo artifacts to remain unaddressed. This paper proposes a novel method of fusing Computer Tomography (CT) and Magnetic Resonance Imaging (MRI) using a hybrid model of Non Sub-sampled Contourlet Transform (NSCT) and Joint Sparse Representation (JSR). This model gratifies the need for precise integration of medical images of different modalities, which is an essential requirement in the diagnosing process towards clinical activities and treating the patients accordingly. In the proposed model, the medical image is decomposed using NSCT which is an efficient shift variant decomposition transformation method. JSR is exercised to extricate the common features of the medical image for the fusion process. The performance analysis of the proposed system proves that the proposed image fusion technique for medical image fusion is more efficient, provides better results, and a high level of distinctness by integrating the advantages of complementary images. The comparative analysis proves that the proposed technique exhibits better-quality than the existing medical image fusion practices.


Medical image fusion; computer tomography; magnetic resonance imaging; non sub-sampled contourlet transform (NSCT); joint sparse representation (JSR)

Cite This Article

K. Kittusamy and L. S. Vadivu Sampath Kumar, "Non sub-sampled contourlet with joint sparse representation based medical image fusion," Computer Systems Science and Engineering, vol. 44, no.3, pp. 1989–2005, 2023.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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