Fig. 1. Target image acquisition system

Fig. 2. Calibration target

Fig. 3. Architecture of blur kernel modeling network

Fig. 4. Architecture of super-resolution network

Fig. 5. Target images acquired at different working temperatures

Fig. 6. Blur kernel varies with working temperature and spatial position

Fig. 7. (a) Calibrated blur kernels; (b) Blur kernels predicted by blur kernel modeling network

Fig. 8. Prediction accuracy of blur kernel modeling network

Fig. 9. (a) Real-world image acquisition system; (b) Experimental set up inside the test chamber

Fig. 10. Visual results of different methods on “scene 1” images captured at different working temperature for scale factor 4

Fig. 11. Visual results of different methods on “scene2” images captured at different working temperature for scale factor 4