Bayesian model of Snellen visual acuity.

  title={Bayesian model of Snellen visual acuity.},
  author={Oscar Nestares and Rafael Toledo Navarro and Beatriz Antona},
  journal={Journal of the Optical Society of America. A, Optics, image science, and vision},
  volume={20 7},
A Bayesian model of Snellen visual acuity (VA) has been developed that, as far as we know, is the first one that includes the three main stages of VA: (1) optical degradations, (2) neural image representation and contrast thresholding, and (3) character recognition. The retinal image of a Snellen test chart is obtained from experimental wave-aberration data. Then a subband image decomposition with a set of visual channels tuned to different spatial frequencies and orientations is applied to the… CONTINUE READING
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