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Learning Lens Blur Fields
The lens blur field is a neural representation for modelling optical blur.
The representation models the combined effects of defocus, diffraction, aberration, and accounts for sensor features such as pixel color filters and pixel‑specific micro‑lenses. Finally, we show that acquired 5‑D blur fields are expressive and accurate enough to reveal, for the first time, differences in optical behavior of smartphone devices of the same make and model. Optical blur, or point spread function (PSF) is an umbrella term for a laundry list of image degrading effects such as defocus, diffraction, and aberrations.
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