Fig. 1. Response model for a cooled infrared pixel

Fig. 2. Schematic diagram of experimental setup

Fig. 3. Experiment scenario

Fig. 4. The relationship between radiation brightness and system grayscale at different integration times

Fig. 5. The relationship between integration time and system grayscale at different blackbody temperatures

Fig. 6. Three-dimensional distribution of calibration parameters

Fig. 7. Schematic diagram of bad pixels compensation effect

Fig. 8. Efficiency analysis of rapid wide dynamic non-uniformity algorithm

Fig. 9. Comparison of corrected residuals of the original image, conventional NUC, and the algorithms mentioned in this paper at different integration times

Fig. 10. Comparison of correction effects by different algorithms with the same integration time (0.6 ms). (a) Raw image; (b) the traditional NUC algorithm results; (c) the proposed NUC algorithm results

Fig. 11. Comparison of calibration effects by different algorithms with different integration times. (a) t=3 ms; (b) t=3.1 ms; (c) t=3.5 ms. (i) Raw image; (ii) traditional NUC algorithm results; (iii) the proposed NUC algorithm results