Fig. 1. Diagram of a typical FPM system

Fig. 2. Examples of 7 × 7 low-resolution images acquired by FPM. (a) Original image; (b) Fourier spectrogram; (c) low-resolution image; (d) images observed by LEDs in different positions

Fig. 3. Structure diagram of proposed Fourier stacked microscopy imaging network model

Fig. 4. Convolution module

Fig. 5. Upsampling reconstruction module

Fig. 6. Residual dense module with channel attention mechanism

Fig. 7. Channel attention module

Fig. 8. Example graph for building and using training datasets

Fig. 9. Schematic of three LED lighting modes. (a) Turn on all LEDs; (b) turn on bright-field area LEDs; (c) turn on rhombus area LEDs

Fig. 10. Convergence analysis of FPRDCA with different values of N, I, and G and three sampling patterns. (a) N; (b) I; (c) G; (d) three sampling patterns

Fig. 11. Convergence analysis of FPRDCA, FPRD, and PtychNet

Fig. 12. Test results of each method on the dataset