Fig. 1. Photoelectric pod control of UAV and image samples

Fig. 2. Example of color transfer processing method for grayscale images using regional histogram texture description

Fig. 3. Example of pseudo-color encoding method for infrared images based on HSI space

Fig. 4. Example of colorization for near-infrared images combined with bilateral filtering

Fig. 5. Example of colorization for conditional generative adversarial network structure

Fig. 6. GMA-CycleGAN infrared colorization example

Fig. 7. Network architecture of each component in generator

Fig. 8. Ablation studies of different loss functions and structures for the proposed TIVNet on FLIR dataset and our dataset

Fig. 9. Loss function changes with different λcyc and λTV

Fig. 10. Architecture of non-uniformity correction module

Fig. 11. Framework of RSDM algorithm

Fig. 12. Framework of semantic fusion module

Fig. 13. Results of different algorithms on the FLIR dataset

Fig. 14. Problem of overexposure in visible light images solved by RSDM under special scenarios

Fig. 15. DJI Royal MAVIC 2 dual-light UAV platform

Fig. 16. Infrared to visible color conversion effect for UAV flight detection at night

Fig. 17. Network infrared video images directly into natural sensing of colorization effect