Tengfei Wang, Yonghe Chen, Yutian Fu. Infrared light field relay imaging system based on micro field lens array[J]. Infrared and Laser Engineering, 2020, 49(7): 20190548
- Infrared and Laser Engineering
- Vol. 49, Issue 7, 20190548 (2020)
Fig. 1. Structure diagram of light field camera
Fig. 2. Biplane parametric representation of four-dimensional light field
Fig. 3. Schematic of refocusing
Fig. 4. Contrast diagram of relay lens vignetting. (a) Without micro field lens array; (b) with micro field lens array
Fig. 5. Structure of the system
Fig. 6. MTF curves for the three coupled structures. (a) α =1.058; (b) α = 1.014; (c) α = 1; (d) α = 0.989; (e) α = 0.973
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Table 1. Designed relay lens parameters
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Table 2. Designed micro field lens array parameters
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Table 3. Designed light field camera parameters
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Table 4. Curve value at Nyquist frequency of three structures with different α
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