Fig. 1. Extended state of the spectrum of structured illumination microscope

Fig. 2. DIFF-SIM algorithm flow chart and spectrum analysis diagram

Fig. 3. Numerical simulation results of the algorithm

Fig. 4. Simulation results with reduced out-of-focus interference

Fig. 5. Schematic diagram of the DMD-projection-based LED-illumination SIM system

Fig. 6. Schematic diagram of the method of generating fringe light field using DMD

Fig. 7. Performance of DIFF-SIM on reconstructed fluorescent microsphere raw data

Fig. 8. Performance of DIFF-SIM on reconstructed BPAE raw data

Fig. 9. Comparison of imaging results between DIFF-SIM and wide field microscopy and LSCM