CATRA: Interactive Measuring and Modeling of Cataracts
Author(s)Pamplona, Vitor F.; Passos, Erick B.; Zizka, Jan; Oliveira, Manuel M.; Clua, Esteban; Raskar, Ramesh; Lawson, Matthew Everett; ... Show more Show less
MetadataShow full item record
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.
DepartmentMassachusetts Institute of Technology. Media Laboratory; Program in Media Arts and Sciences (Massachusetts Institute of Technology)
Proceedings of the ACM SIGGRAPH 2011 papers (SIGGRAPH '11)
Association for Computing Machinery (ACM)
Vitor F. Pamplona, Erick B. Passos, Jan Zizka, Manuel M. Oliveira, Everett Lawson, Esteban Clua, and Ramesh Raskar. 2011. CATRA: interactive measuring and modeling of cataracts. In ACM SIGGRAPH 2011 papers (SIGGRAPH '11), Hugues Hoppe (Ed.). ACM, New York, NY, USA, , Article 47 , 8 pages.
Author's final manuscript