Fig. 1. Model of pulse-dilation framing camera using dual-magnetic lenses

Fig. 2. Analysis of imaging performance. (a) Magnetic field distribution of on-axis; (b) demagnification imaging in half of 20 mm×20 mm area; (c) electron imaging distribution of on-axis; (d) electron imaging distribution at 20 mm off-axis

Fig. 3. Template for Laplacian convolution kernel

Fig. 4. GAN model

Fig. 5. Generator network

Fig. 6. Structure of two-scale discriminator

Fig. 7. Enhancement analysis results of acquired images using different methods. (a) Original images (OI); (b) GAN; (c) Gauss-Laplacian (GL) filtering; (d) homomorphic filtering (HF); (e) GAN and Gauss-Laplacian (G-GL) filtering; (f) GAN and homomorphic filtering (G-HF)

Fig. 8. Quantitative indexes of spatial resolution performance improvement in paraxial and abaxial regions. (a) Overall average gradient of the image; (b) local average gradient in paraxial and abaxial 5 lp/mm regions; (c) average modulation degree for paraxial and abaxial 5 lp/mm regions