Feifan Yang, Hui Li, Jing Peng, Yuntao Wu. Research on Microscopic Imaging of High Resolution Light Field Based on Graph Regularization[J]. Acta Optica Sinica, 2021, 41(9): 0918001
- Acta Optica Sinica
- Vol. 41, Issue 9, 0918001 (2021)
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
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Table 1. USAF-1951 image resolution
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Table 2. Image quality comparison
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