Results 121 to 130 of about 1,511 (175)

Wavefront Aberrometry in Pseudophakic Patients Before and After Vitrectomy for Bothersome Floaters. [PDF]

J Vitreoretin Dis
Adelberg DA, Parsons MT.
europepmc   +1 more source

Design-Dependent Myopia Control in Orthokeratology: Spherical Versus Aspherical Back Optic Zone Profiles. [PDF]

Bioengineering (Basel)
Lin WP, Lv H, Wu LY, Wu R, Li X, Abass A.   +5 more
europepmc   +1 more source

Anterior cruciate ligament tear detection based on Res2Net modified by improved Lévy flight distribution. [PDF]

Sci Rep
Yang P, Liu Y, Liu F, Han M, Abdi Y.
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Monocular complex amplitude imaging via a polarization-multiplexed liquid-crystal-lens-informed Fourier neural network. [PDF]

Natl Sci Rev
Li L, Liao M, Zhang Y, Zeng Z, Wang S, Jia W, Zhang J, Zhang B, Dong Y, Zhang D, Zhang F, Yang Y.   +11 more
europepmc   +1 more source

Single-shot, reference-less computational wavefront sensing for complex optical fields. [PDF]

Light Sci Appl
Gao Y, Cao L, Tsai DP.
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Zernike polynomials: a guide

Journal of Modern Optics, 2011
In this paper we review a special set of orthonormal functions, namely Zernike polynomials which are widely used in representing the aberrations of optical systems. We give the recurrence relations, relationship to other special functions, as well as scaling and other properties of these important polynomials.
Vasudevan Lakshminarayanan, André Fleck   +1 more
exaly   +3 more sources

Vector polynomials orthogonal to the gradient of Zernike polynomials

Optics Letters, 1982
A set of vector polynomials is constructed, and it is shown that they are orthonormal to the gradient of the Zernike polynomials. Such a set can be used to obtain directly the Zernike decomposition of the wave front from the measurements involving the gradient of the wave front.
Athanasios Gavrielides
exaly   +3 more sources

Zernike Polynomials and Optical Aberrations

Applied Optics, 1995
The use of Zernike polynomials to calculate the standard deviation of a primary aberration across a circular, annular, or a Gaussian pupil is described. The standard deviation of secondary aberrations is also discussed briefly.
Virendra N Mahajan
exaly   +3 more sources

Wave-front interpretation with Zernike polynomials

Applied Optics, 1980
Several low-order Zernike modes are photographed for visualization. These polynomials are extended to include both circular and annular pupils through a Gram-Schmidt orthogonalization procedure. Contrary to the traditional understanding, the classical least-squares method of determining the Zernike coefficients from a sampled wave front with ...
J Y, Wang, D E, Silva
exaly   +3 more sources