Fig. 1. Schematic diagram of LCDE-IDN structure

Fig. 2. Flow chart of LCDE-IDN training and optimization

Fig. 3. Light field imaging device

Fig. 4. Results of LCDE-IDN. (a) Comparison of reconstructed spectral curves; (b) loss function change curves

Fig. 5. Schematic diagram of structure of LC-MLA and related experimental results. (a) Structural diagram of LC-MLA and actual sample diagram; (b) comparison of transmittance of empirical LC-MLA designed based on empirical method and optimized LC-MLA designed based on LCDE-IDN method at 3.0 V and 8.0 V, with wavelength range of 400 nm to 900 nm; (c) PSF comparison results of empirical LC-MLA and optimized LC-MLA at voltage of 4.8 V; (d)(e) light field imaging results based on empirical LC-MLA and optimized LC-MLA, respectively

Fig. 6. Comparison of spectral reconstruction results of optimized LC-MLA designed by LCDE-IDN method and empirical LC-MLA designed by empirical method (insets Ⅰ‒Ⅲ are comparison of true values and spectral reconstruction curves extracted from red, orange, and blue boxes on scene, respectively)