Fig. 1. Algorithm flow chart

Fig. 2. Relationship between viewpoint and projection point

Fig. 3. Experimental setup. (a) Light field microscope experimental table; (b) schematic diagram of light field microscopy device; (c) schematic diagram of light field microscope

Fig. 4. Calibration of microlens array. (a) Traditional calibration; (b) peak detection calibration

Fig. 5. Light field micrograph and perspective images. (a)(b) Light field micrograph; (c)(d) periodic perspective image; (e)(f) aperiodic perspective image

Fig. 6. Super-resolution perspective images. (a)(c) Aperiodic perspective image; (b)(d) super-resolution perspective image by proposed method; (e)-(h) local magnification views

Fig. 7. Distributions of pixel value for locust image. (a) Aperiodic perspective image; (d) super-resolution perspective image by proposed method; (b)(c)(e)(f) distributions of pixel value of Fig. (a) and (d), respectively

Fig. 8. Distributions of pixel value for resolution board. (a) Aperiodic perspective image; (d) super-resolution perspective image by proposed method; (b)(c)(e)(f) distributions of pixel value of Fig. (a) and (d), respectively

Fig. 9. Comparison of experimental results of locust image. (a) Bicubic interpolation; (b) PCA method; (c) proposed method; (d)-(f) local magnification views

Fig. 10. Comparison of experimental results of resolution board. (a) Bicubic interpolation; (b) PCA method; (c) proposed method;(d)-(f) local magnification views