Table 1.
Summary of existing medical image fusion techniques.
Fig 1.
Contourlet filter bank: Multiscale decomposition via LP followed by directional decomposition using DFB [39].
Fig 2.
Preprocessing techniques.
Fig 3.
Proposed methodology.
Fig 4.
Sample source images from the multimodal medical image datasets used in this study.
Fig 5.
Visual results for SET-1.
Fig 6.
Visual results for SET-2.
Fig 7.
Visual results for SET-3.
Fig 8.
Visual results for SET-4.
Fig 9.
Visual results for SET-5.
Table 2.
Quantitative comparison on SET-1 dataset.
Table 3.
Quantitative comparison on SET-2 dataset.
Table 4.
Quantitative comparison on SET-3 dataset.
Table 5.
Quantitative comparison on SET-4 dataset.
Table 6.
Quantitative comparison on SET-5 dataset.
Fig 10.
Graphical visualization of different fusion techniques compared to SET-1.
Fig 11.
Graphical visualization of different fusion techniques compared to SET-2.
Fig 12.
Graphical visualization of different fusion techniques compared to SET-3.
Fig 13.
Graphical visualization of different fusion techniques compared to SET-4.
Fig 14.
Graphical visualization of different fusion techniques compared to SET-5.
Table 7.
Ablation study results showing performance of the original method, simple-weighted fusion, and low-frequency-only fusion across various metrics.