Image quality eigenfunctions for the human eye
نویسندگان
چکیده
منابع مشابه
Image quality of the human eye.
The eye is an optical instrument that projects scenes of the visual world onto the retina. It has been known for many years that the eye is far from being a perfect optical system, in particular for large pupil diameters. Refractive anomalies (defocus or astigmatism) occur frequently in the eye. In Western countries, myopia affects approximately 30% of the population, although its prevalence is...
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We have previously studied how polarization affects the double-pass estimates of the retinal image quality by using an imaging polarimeter [Opt. Lett. 24, 64 (1999)]. A series of 16 images for independent combinations of polarization states in the polarimeter were recorded to obtain the spatially resolved Mueller matrices of the eye. From these matrices, double-pass images of a point source for...
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We have constructed a wave-front sensor to measure the irregular as well as the classical aberrations of the eye, providing a more complete description of the eye's aberrations than has previously been possible. We show that the wave-front sensor provides repeatable and accurate measurements of the eye's wave aberration. The modulation transfer function of the eye computed from the wave-front s...
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We present a framework for calculating low-dimensional bases to represent image irradiance from surfaces with isotropic reflectance under arbitrary illumination. By representing the illumination and the bidirectional reflectance distribution function (BRDF) in frequency space, a model for the image irradiance is derived. This model is then reduced in dimensionality by analytically constructing ...
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Many rodents do not see well. For a target to be resolved by a rat or a mouse, it must subtend a visual angle of a degree or more. It is commonly assumed that this poor spatial resolving capacity is due to neural rather than optical limitations, but the quality of the retinal image has not been well characterized in these animals. We have modified a double-pass apparatus, initially designed for...
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ژورنال
عنوان ژورنال: Biomedical Optics Express
سال: 2019
ISSN: 2156-7085,2156-7085
DOI: 10.1364/boe.10.005818