Light field image denoising using a linear 4D frequency-hyperfan all-in-focus filter

@inproceedings{Dansereau2013LightFI,
  title={Light field image denoising using a linear 4D frequency-hyperfan all-in-focus filter},
  author={Donald G. Dansereau and Daniel L. Bongiorno and Oscar Pizarro and Stefan B. Williams},
  booktitle={Computational Imaging},
  year={2013}
}
Imaging in low light is problematic as sensor noise can dominate imagery, and increasing illumination or aperture size is not always effective or practical. Computational photography offers a promising solution in the form of the light field camera, which by capturing redundant information offers an opportunity for elegant noise rejection. We show that the light field of a Lambertian scene has a 4D hyperfan-shaped frequency-domain region of support at the intersection of a dual-fan and a… CONTINUE READING
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