Fig. 1. Aberration correction model

Fig. 2. Flow chart of particle swarm optimization

Fig. 3. Simulation results of defocused wavefront aberration. (a) Loaded defocused wavefront; (b) blurred image; (c) recovered wavefront residual distribution; (d) defocused image

Fig. 4. Simulation results of low-order mixed wavefront aberration. (a) Loaded low-order mixed wavefront aberration; (b) blurred image; (c)(d) reconstructed wavefront residual distribution and clear image with image information entropy as evaluation index; (e)(f) reconstructed wavefront residual distribution and clear image with image claritas evaluation index

Fig. 5. Comparison of Zernike polynomials coefficients of wavefront aberration loaded and restored

Fig. 6. Experimental images of onion cells. (a) OCT tomogram; (b) en-face image

Fig. 7. Onion tissue cell images. (a) Blurred image to be corrected; (b) clear image

Fig. 8. Grape tissue cell images. (a) Image to be corrected; (b) clear image