Fig. 1. Schematic diagram of radiation received by infrared thermal imager

Fig. 2. Temperature measurement calibration device

Fig. 3. Blackbody temperature measurement curve of 38 ℃ after calibration with baffle

Fig. 4. Comparison of effects before and after temperature measurement calibration

Fig. 5. Fitting results of temperature measurement

Fig. 6. Temperature measurement results before and after temperature compensation

Fig. 7. Fitting curve of temperature compensation

Fig. 8. Temperature curve after calibrating and correcting with compensation

Fig. 9. Relative error of temperature curves