“CATRA: interactive measuring and modeling of cataracts” by Pamplona, Passos, Zizka, Oliveira, Lawson, et al. …

  • ©Vitor F. Pamplona, Erick B. Passos, Jan Zizka, Manuel M. Oliveira, Everett Lawson, Esteban Clua, and Ramesh Raskar

Conference:


Type:


Title:

    CATRA: interactive measuring and modeling of cataracts

Presenter(s)/Author(s):



Abstract:


    We introduce an interactive method to assess cataracts in the human eye by crafting an optical solution that measures the perceptual impact of forward scattering on the foveal region. Current solutions rely on highly-trained clinicians to check the back scattering in the crystallin lens and test their predictions on visual acuity tests. Close-range parallax barriers create collimated beams of light to scan through sub-apertures, scattering light as it strikes a cataract. User feedback generates maps for opacity, attenuation, contrast and sub-aperture point-spread functions. The goal is to allow a general audience to operate a portable high-contrast light-field display to gain a meaningful understanding of their own visual conditions. User evaluations and validation with modified camera optics are performed. Compiled data is used to reconstruct the individual’s cataract-affected view, offering a novel approach for capturing information for screening, diagnostic, and clinical analysis.

References:


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