Fig. 1. Example of camera imaging

Fig. 2. Example of camera response curves

Fig. 3. Implementation flow chart of the proposed method

Fig. 4. Multispectral fusion algorithm block

Fig. 5. Structure of U-Net model

Fig. 6. Flow chart of the perceptual loss

Fig. 7. Preprocessed data and ground truth

Fig. 8. Comparison of experimental results

Fig. 9. Image edge evaluation

Fig. 10. Color reconstruction evaluation

Fig. 11. Image detail evaluation

Fig. 12. Real multispectral data imaging test

Fig. 13. Comparison of different input data in ablation experiment

Fig. 14. Output comparison of networks with different structures