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Spatial and angular resolution enhancement of light fields using convolutional neural networks

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Fig. 4. Sub-aperture (perspective) image formation. A perspective image can be constructed by picking specific pixels from the lenslet regions
Fig. 5. An illustration of the proposed LFSR method. First, the angular resolution of the light field (LF) is doubled; second, the spatial resolution is doubled.
Fig. 8. Constructing a high-resolution perspective image. A perspective image can be formed by picking a specific pixel from each lenslet region, and putting all picked pixels together
Fig. 9. Visual comparison of different methods. (a) Ground truth. (b) Bicubic resizing (imresize)/25.34 dB
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