Fig. 1. Schematic of the LOS method

Fig. 2. Schematic of target infrared imaging calculation

Fig. 3. Schematic of subdivision surfaces projection imaging

Fig. 4. Flow chart of target infrared imaging program

Fig. 5. Temperature of aircraft skin and flowfield of engine plume

Fig. 6. Aircraft infrared radiance image of mid-wave

Fig. 7. Comparison of the plume radiation data between calculated and measured