Results 191 to 200 of about 18,614 (247)

Effects of Myopia Control Spectacle Lenses on Peripheral Refraction and Contrast: Insights From Optical Modeling. [PDF]

Invest Ophthalmol Vis Sci
Liu Y, Hu X, Chen X, Yang X, Liu D, He T, Li L.   +6 more
europepmc   +1 more source

MEASUREMENT AND APPLICATION OF MTF

Japanese Journal of Radiological Technology, 1994
openaire   +2 more sources

Integrated multiomics reveals starvation-driven keratin degradation and persistence in <i>Fervidobacterium islandicum</i> AW-1. [PDF]

iScience
Sung JY, Kim JY, Jin HS, Baek JH, Kim NE, Song HH, Bong SH, Lee YJ, Kim BC, Lee DY, Lee DW.   +10 more
europepmc   +1 more source

Neuroimaging insights into transgender and gender nonconfirming youth: a scoping review. [PDF]

Child Adolesc Psychiatry Ment Health
Bonnekoh LM, Rölver A, Wessing I, Fellmeth RH, Schürmeyer N, Dannlowski U, Romer G.   +6 more
europepmc   +1 more source

High-Resolution Snapshot Multispectral Imaging System for Hazardous Gas Classification and Dispersion Quantification. [PDF]

Micromachines (Basel)
Li Z, Zhang H, Li Q, Song Y, Chen M, Liu S, Li D, Li C, Wang J, Xie R.   +9 more
europepmc   +1 more source

VolE: A point-cloud framework for food 3D reconstruction and volume estimation. [PDF]

Sci Rep
Haroon U, AlMughrabi A, Zoumpekas T, Marques R, Radeva P.   +4 more
europepmc   +1 more source

Thermal Analysis and Hybrid Compensation Design of a 10× Optical Zoom Periscope Lens for Smartphones. [PDF]

Micromachines (Basel)
Liu YH, Tien CL, Su YL, Sun WS, Hsu YS.
europepmc   +1 more source

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Noise in MTF Measurements

Applied Optics, 1973
The effect of shot noise on the MTF of a lens when measured by means of an edge scan is treated both analytically and experimentally. It is shown that the variance in the MTF, introduced by the shot noise, establishes an upper bound on the magnitude of any systematic error introduced into the MTF measurement by the noise.
openaire   +2 more sources

MTF Optimization in Lens Design

International Lens Design, 1990
Optimization programs generally use a merit function which is related to mean square spot size or wave aberration. Direct MTF optimization has been tried, but with limited success. One problem, which makes it almost unusable in the early stages of the design, is the fact that MTF values are bounded between 0.0 and 1.0 and oscillate significantly as a ...
Matthew P. Rimmer, Thomas J. Bruegge, Thomas G. Kuper   +2 more
openaire   +1 more source

Validity of the MTF of magnification radiography

Physics in Medicine & Biology, 1972
The present theory underlying the concept of the modulation transfer function of magnification radiography MTFm, although mathematically consistent, raises fundamental questions in the practical application. It has not been demonstrated that, for objects of finite thickness, the exposing operation is a linear and isoplanatic process which can be ...
K, Rossmann, A G, Haus, K, Doi
openaire   +2 more sources