Image Pre-compensation Algorithm for Monochromatic Aberrations in the Eyes
نویسندگان
چکیده
منابع مشابه
Monochromatic aberrations of human eyes in the horizontal visual field.
We measured the monochromatic aberrations of five subjects' right eyes both temporally and nasally out to 40 degrees from fixation. We used a Hartmann-Shack sensor with modifications to equipment and software to enable off-axis measurements. Results were standardized for 6-mm pupils. There was considerable variation among subjects in the pattern of aberrations. Aberrations were generally greate...
متن کاملIntegrated DSP control and image acquisition system for measuring monochromatic aberrations in human eyes
The monochromatic aberrations of the human eye limit visual performance to varying degrees. An aberroscope or a Hartman-Shack sensor can measure the total aberrations of the human eye. The aberroscope that is currently being developed at the Centre for Eye Research consists of a grid pattern that is projected on the eye through a specially designed optical system and a camera that records the r...
متن کاملHuman eyes do not need monochromatic aberrations for dynamic accommodation
PURPOSE To determine if human accommodation uses the eye's own monochromatic aberrations to track dynamic accommodative stimuli. METHODS Wavefront aberrations were measured while subjects monocularly viewed a monochromatic Maltese cross moving sinusoidally around 2D of accommodative demand with 1D amplitude at 0.2 Hz. The amplitude and phase (delay) of the accommodation response were compared...
متن کاملRecent advances in measurement of monochromatic aberrations of human eyes.
The field of aberrations of the human eye is moving rapidly, being driven by the desire to monitor and optimise vision following refractive surgery. It is important for ophthalmologists and optometrists to have an understanding of the magnitude of various aberrations and how these are likely to be affected by refractive surgery and other corrections. In this paper, I consider methods used to me...
متن کاملAn Image Processing Approach to Pre-compensation for Higher-Order Aberrations in the Eye
Human beings rely heavily on vision for almost all of the tasks that are required in daily life. Because of this dependence on vision, humans with visual limitations, caused by genetic inheritance, disease, or age, will have difficulty in completing many of the tasks required of them. Some individuals with severe visual impairments, known as high-order aberrations, may have difficulty in intera...
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ژورنال
عنوان ژورنال: Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications
سال: 2009
ISSN: 2188-4730,2188-4749
DOI: 10.5687/sss.2009.248