Fig. 1. Schematic diagram of snapshot spectral imaging technology based on field compression

Fig. 2. Optical schematic diagram of front lens group

Fig. 3. Wavefront diagram

Fig. 4. Optical schematic diagram of rear lens group

Fig. 5. Optical schematic diagram of system

Fig. 6. Standard point diagram

Fig. 7. System distortion diagram

Fig. 8. Vertical color difference diagram

Fig. 9. MTF curves

Fig. 10. Principle of system prototype

Fig. 11. Physical drawing of experimental test

Fig. 12. Comparison of system field of view

Fig. 13. Target to be tested

Fig. 14. Target color images collected by system

Fig. 15. 8-channel images measured in experiment

Fig. 16. Four-color spectral curves

Fig. 17. Outdoor spectrum test diagram

Fig. 18. 8-channel spectral images